• In re Tanaka, No. 2010-1262 (Fed. Cir. 2011)

        by Nabeela Rasheed

    Once a patent issues it behooves the patentee to scrutinize the claims to ensure that it has claimed all that it had a right to claim.  Where the patentee discovers that without deceptive intent the patent claims more or less than it should have, the patentee can seek a reissue patent under 35 U.S.C. §251.  In In re Tanaka, decided today, the Federal Circuit held that the simple omission from a patent of a dependent claim is sufficient reason to allow the patentee to seek reissue.  While today’s decision concerned a patent directed at an alternator pulley for improving an automobile alternator’s efficiency, it applies equally to pharmaceutical patents.

    In re Tanaka addressed an appeal from a decision of the Board of Patent Appeals and Interferences.  The Board had been asked to address the question of whether an examiner “erred in determining that the presentation of a narrower claim in a reissue application that still contains all of the original patent claims does not present the type of error correctible by reissue under 35 U.S.C. § 251.”  Procedurally, the Applicant initially had tried to broaden claim 1 with the reissue but during prosecution went back to the original scope of issued claim 1 while including in the reissue application a new claim dependent from original issued claim 1.  Thus, the only “error” the Applicant presented was the lack of presence of this dependent claim in the original issued patent.  The Board affirmed the Examiner’s decision by interpreting § 251 as not allowing a reissue where the sole correction in the reissue is the addition of a narrower dependent claim while retaining the original claims as issued.

    At the Court of Appeals, the PTO took the position that omission of a dependent claim does not make the patent “partially inoperative” because the subject matter of the dependent claim is covered by the independent parent claim.  Moreover, the PTO argued that omitting the dependent claim is not a case of “claiming more or less than the patentee had a right to claim in the patent.”

    The Federal Circuit disagreed, relying on Judge Rich’s opinion from In re Handel 312 F2d 943 (CCPA 1963), and concluded that “adding dependent claims as a hedge against possible invalidity of original claims is a proper reason for asking that a reissue be granted.” According to the majority opinion, hedging against the possible invalidity of the broader independent claims has been tacitly approved and is in accordance with the remedial purposes of the reissue statute.  Further, for the purposes of § 251 “inoperative” is construed as “inoperative adequately to protect the invention”  The Federal Circuit advises that contrary to the Board’s assertions, applying for a reissue that adds only narrower claims without amending any of the original claims is not the same as a “no defect” reissue.

    Thus, the Federal Circuit holds that omission of a narrower claim from a patent can render a patent partly inoperative by failing to protect the disclosed invention to the full extent allowed by law.  This case thus allows the applicant a second bite at the apple to pick up any additional dependent claims he/she may have forgotten along the way during prosecution.  Because the addition of a dependent claim is a “narrowing” amendment it is not subject to the 2 year broadening statute of limitations of the reissue statute and thus a reissue adding an omitted dependent claim could be filed at any time during the lifetime of the patent.

    Judge Dyk dissented – mostly reasoning that the precedent relied on by the majority did not address the issue of whether inclusion of a narrower claim is sufficient basis for a reissue.  Judge Dyk reasoned that some correction of an error affecting the original claims is required and in the present case the addition of the dependent claim had no impact on the applicants rights under the original patent.

    The case was remanded to the PTO.

  • American Conference Institute will be holding its 5th annual "Paragraph IV Disputes" conference in New York City on May 3rd and 4th at the Marriott New York Downtown.  This is a great conference if you're looking to keep up with the latest developments in Paragraph IV litigation.

    I will be speaking at the conference on May 3rd, on "Forfeiture of Exclusivity Dilemmas Relative to Paragraph IV Litigation."  The other talks include:

    • Pre-Suit Due Diligence Strategies:  Anticipating Paragraph IV Challenges to Small Molecule and Small Protein Patents
    • "Invalid or Will Not Be Infringed":  Re-Assessing the ANDA Applicant's Pre-Litigation Considerations and Obligations Under Paragraph IV vis-a-vis Microsoft v. i4i
    • New Standards and Controversies in Obviousness-Type Double Patenting:  Repercussions for Paragraph IV Challenges
    • Throwing Down the Gauntlet:  The Paragraph IV Notice Letter
    • Let the Games Begin:  The Start of the Paragraph IV Law Suit–Pleadings and Considerations
    • A View From the Bench on Paragraph IV Litigation (featuring Judges Garrett E. Brown, Joel A. Pisano, and Tonianne Bongiovanni, all from the District of New Jersey)
    • Mastering Regulatory Maneuvers essential to PIV Litigation
    • FTC Keynote:  Pay for Delay Settlements (by Markus H. Meier, Assistant Director at the Federal Trade Commission)
    • Damages and Injunctions:  Exploring the Consequences and Conundrums of Launching At Risk
    • Alleging and Defending Against Inequitable Conduct in a Paragraph IV Case:  Legal and Ethical Considerations
    • Discovery Strategies and Other Pre-trial Tactics for Brand Names and Generics

    In addition, ACI is offering a pre-conferencce workshop, "Hatch-Waxman and BPCIA 101," on May 2nd; and a post-conference workshop, "The Master Class on Settling Paragraph IV Disputes," on May 5th.

    For more information or to register, please visit the conference website.  Use discount code OBB to save $400 on registration fees.  I hope to see you there!

  • Dear Readers,

    I am happy to report that I recently joined McAndrews Held & Malloy, a large IP law firm in Chicago.  The left sidebar of the blog is updated with my new contact information.

    I will soon resume regular posting on Orange Book Blog, and I anticipate that some of my new colleagues will contribute posts as well.

    Thank you for continuing to read Orange Book Blog!

    Aaron Barkoff

  • AstraZeneca Pharms. et al. v. Apotex et al., No. 10-338 (D. Del. 2010)

    Crestor (rosuvastatin) is FDA-approved for the treatment of various cholesterol-related conditions, including hyperlipidemia, hypertriglyceridemia, homozygous familial hypercholesterolemia (HoFH) and heterozygous familial hypercholesterolemia (HeFH), and for the prevention of cardiovascular disease in patients with elevated levels of C-reactive protein.  The uses of rosuvastatin for the last two indications are claimed in U.S. Patent Nos. 6,858,618 and 7,030,152, respectively, both of which are listed in the Orange Book.  The first three indications are not covered by Orange Book-listed patents.

    Nine generic drugmakers filed rosuvastatin ANDAs with section viii statements for the '618 and '152 patents, asserting that they do not seek approval for the indications claimed in those two patents.  (A tenth company, Sandoz, filed an ANDA with Paragraph IV certifications to the patents.)

    AstraZeneca then filed suit against the ANDA applicants under 35 USC 271(e)(2), alleging infringement of the '618 and '152 patents.  Section 271(e)(2) states (in part):

    It shall be an act of infringement to submit an [ANDA] . . . if the purpose of such submission is to obtain approval to engage in the commercial manufacture, use, or sale of a drug claimed in a patent or the use of which is claimed in a patent before the expiration of such patent.

    In response, the ANDA applicants who filed section viii statements on the '618 and '152 patents moved to dismiss for lack of subject matter jurisdiction under Fed. R. Civ. P. 12(b)(1).  They argued in their motions that Section 271(e)(2) creates a justiciable patent infringement dispute only if an ANDA includes a Paragraph IV certification.  AstraZeneca, on the other hand, argued that the plain language of Section 271(e)(2) does not require a Paragraph IV certification to have been filed.  AstraZeneca also pointed to several cases in which courts have recognized infringement under Section 271(e)(2) when there was no Paragraph IV certification.  The Federal Circuit, however, has never squarely addressed this issue.

    In an opinion filed yesterday, the district court granted the ANDA applicants' motions to dismiss.  The court described the specific issue in the case as "whether Plaintiffs may bring an infringement claim under Section 271(e)(2) based on two FDA-approved method-of-use patents even though Defendants seek approval to manufacture and market rosuvastatin calcium for FDA-approved indications not claimed by Plaintiffs' patents."  In deciding this question in the negative, the court relied on the Federal Circuit's decision in Warner-Lambert v. Apotex, 316 F.3d 1348, which found that there was no 271(e)(2) claim when a generic drugmaker sought approval for only non-patented indications.  AstraZeneca attempted to distinguish that case, but was unsuccessful.

    The court went on to address AstraZeneca's argument that Section 271(e)(2) would be rendered meaningless if generic manufacturers can evade suit simply by filing conclusory section viii statements.  According to the court, the argument is "misguided," because "the formality of submitting a section viii statement does not immunize a generic manufacturer from suit under Section 271(e)(2)."  Further, the court stated, "nor does filing a Paragraph IV Certification automatically trigger Section 271(e)(2)."  The court concluded:

    Thus, the district court has jurisdiction under Section 271(e)(2) when, regardless of whether the ANDA contains a Paragraph IV Certification or a section viii statement, the ANDA actually seeks approval for a patented indication.  In that event, the filing of an ANDA constitutes an "act of infringement" which confers jurisdiction under Section 271(e)(2)(A).  In order to determine whether an ANDA actually seeks approval for a patented indication, a court need only compare the ANDA's proposed labeling, which provides the basis for FDA approval and defines the indications for which the generic manufacturer can market the drug, to the indications claimed in the patents.  If there is no overlap, then there is no claim under Section 271(e)(2) and no justiciable controversy.

    In a separate opinion earlier this year, the validity of AstraZeneca's patent on rosuvastatin calcium was upheld.  But because the method-of-use patents will not expire until two to four years after the compound patent expires, the effect of losing the method-of-use patents could be significant to AstraZeneca.  Accordingly, it seems likely that the Federal Circuit will finally address the issues in this case directly.

    FURTHER READING:

     

  • Teva Pharm. Indus. v. AstraZeneca Pharms., No. 08cv4786 (E.D. Pa. 2010)

    Here's something you don't see every day:  an ANDA filer suing a brand-name drug manufacturer for patent infringement, claiming that the brand-name drug infringes the ANDA filer's patent.

    In late 2007/early 2008, AstraZeneca ("AZ") filed suit against nine different ANDA filers, including Teva, who sought approval to market generic versions of Crestor (rosuvastatin).  The cases were consolidated in multidistrict litigation (D. Del. No. 08-md-01949) and proceeding through discovery when, in October 2008, Teva sued AZ, alleging that Crestor infringes Teva's U.S. Patent No. RE39,502.  Claim 1 of the '502 patent reads:  "A stabilized pharmaceutical composition for the treatment of dyslipidemia, comprising [rosuvastatin] and a stabilizing effective amount of at least one amido-group containing polymeric compound . . . ."

    AZ filed a motion for summary judgment of patent invalidity due to prior invention pursuant to 35 USC 102(g)(2), which states that a person shall be entitled to a patent unless "before such person's invention thereof, the invention was made in this country by another inventor who had not abandoned, suppressed, or concealed it."  AZ argued that it made a batch of Crestor tablets meeting each limitation of the asserted '502 patent claims prior to December 1, 1999, the earliest date by which Teva claimed to have conceived of and reduced to practice the claimed formulation.

    Teva did not dispute that AZ made a batch of Crestor tablets before December 1, 1999.  Rather, Teva argued that even if AZ created the exact infringing commercial formulation in mid-1999, AZ still could not prove conception or reduction to practice of the invention claimed by Teva's '502 patent by that date because there was no evidence that AZ appreciated that crospovidone, the amido-group containing polymeric compound included in Crestor, contributes to the stability of the formulation.  According to Teva, because AZ never appreciated that crospovidone contributes to the stability of its Crestor product formulations, it cannot have "created an embodiment that literally met all of the limitations of Teva's claims."

    Last month, the district court granted AZ's motion for summary judgment.  The district court explained in its opinion that to establish priority of invention, there must be evidence not only that the inventor "actually first made the invention" but also that he "understood his creation to have the features that comprise the inventive subject matter."  According to the court, however,

    the inventor need not establish that he recognized the invention in the same terms as those recited in the claims as the invention is not the language of the claims but the subject matter thereby defined.  Rather, the inventor must establish that he recognized and appreciated a compound corresponding to the compound defined by the claims.

    The court continued:

    Applying this principle–that the discovery of a previously unappreciated property of a prior art composition, or of a scientific explanation for the prior art's functioning, does not render the old composition patentably new to the discoverer–the Federal Circuit has held invalid for anticipation numerous patents claiming what amount to newly discovered properties of prior art compositions, where the missing characteristic was necessarily present, or inherent, in the prior art, even though there was no recognition of the missing characteristic in the prior art.

    The court concluded that, in this case, "Teva's discovery that crospovidone contributes to the stability of the formulations resembles the sort of scientific explanation for a prior art composition's functuning that the Federal Circuit has found to be an inherent property of the prior art in other cases."

  • Abraxis Bioscience v. Navinta, No. 2009-1539 (Fed. Cir. 2010)

    In 2006, Navinta filed an ANDA for a generic version of Naropin (ropivacaine), a drug indicated for use in surgical anasthesia and acute pain management.  At the time, there was only one patent listed for ropivacaine in the Orange Book, U.S. Patent No. 4,870,086, which claims an optically pure isomer of ropivacaine hydrochloride monohydrate.  Navinta's ANDA included a paragraph IV certification to the '086 patent.

    Shortly after receiving Navinta's notice of paragraph IV certification to the '086 patent, Abraxis sued Navinta under 35 USC 271(e)(2), alleging infringement not only of the '086 patent, but also of U.S. Patent Nos. 5,670,524 and 5,834,489 (the "method patents"), which are directed to methods of using low concentrations of ropivacaine for the treatment of pain.  Although the '524 and '489 patents issued years earlier, they were not listed in the Orange Book at the time Navinta filed its ANDA.

    Navinta filed a motion to dismiss Abraxis's claims regarding the method patents, arguing that because the method patents were not listed in the Orange Book, Navinta did not file paragraph IV certifications on them, and therefore there was no basis for suit under section 271(e)(2).  The district court, however, denied Navinta's motion to dismiss, concluding that suit under 271(e)(2) was proper notwithstanding that the method patents weren't listed in the Orange Book.

    Navinta appealed this ruling to the Federal Circuit, arguing that jurisdiction under section 271(e)(2) is proper only when an ANDA filer has made a paragraph IV certification, and citing several cases from the Supreme Court and Federal Circuit that allegedly "held that section 271(e)(2) requires a paragraph IV certification."  In response, Abraxis argued that the alleged "holdings" cited by Navinta were actually mere dicta, and that neither the Supreme Court nor Federal Circuit has ever directly answered whether a paragraph IV certification is a prerequisite to suit under 271(e)(2).

    Some number of months after the district court denied Navinta's motion to dismiss for lack of jurisdiction under section 271(e)(2), Navinta filed a second motion to dismiss, this time alleging that Abraxis lacked standing to sue because, due to a break in the chain of title, Abraxis did not own the patents-in-suit at the time that it filed the Complaint.  The district court, however, again denied Navinta's motion, finding that although there was a break in the chain of title to the patents, the "intent" of the various assigning entities was sufficient to imply a nunc pro tunc assignment based on the relationship between the corporate entities.  Having denied Navinta's second motion to dismiss, the case proceeded to trial.

    Last August, after a seven-day bench trial, the district court issued its opinion on the merits.  The court found direct and indirect infringement of the '086 composition patent, and indirect infringement of the '524 and '489 method patents.  Pursuant to its findings of infringement of the method patents, the district court ordered that the effective date of approval of Navinta's ANDA product be no earlier than September 14, 2014, the expiration date of the method patents.

    The district court's findings that Navinta would induce infringement of the method patents are the most interesting, because while the method patents are limited to the use of a low concentration of ropivacaine for the treatment of acute pain, Navinta had amended its ANDA not to seek approval of the low concentration of ropivacaine and, pursuant to section viii, had "carved out" the acute pain indication from its proposed ANDA product labeling.  The district court, however, concluded that Navinta "knows or should know that practicioners will use its ANDA products at diluted concentrations for pain management."  Furthermore, despite Navinta's section viii labeling carve-out, the district court concluded:

    Navinta's Package Insert Labeling is sufficient to establish Navinta's encouragement of direct infringement of the '524 and '489 patents: (1) Navinta's Labeling specifically encourages infringement by including multiple references to use of the ANDA Products in labor and delivery, which is an acute pain management application that is only FDA-approved at [low] concentrations and by epidural administration; (2) Navinta's Labeling specifically encourages infringement by including statements referring practicioners to medical practice texts and references, which would instruct practicioners to use ropivacaine at concentrations of 0.2% or below for pain management; (3) Navinta's Labeling specifically encourages infringement by encouraging the use of the ANDA Products at the lowest possible concentrations for pain management issues.

    Navinta appealed these findings.  Navinta argued in its appeal brief that the district court erred "because there was insufficient evidence that Navinta will actively encourage infringement or that Navinta possesses specific intent to encourage infringement," as required under the Federal Circuit's en banc decision in DSU Medical v. JMS.  Navinta argued:  "In holding Navinta responsible for uses of its ANDA product that are not mentioned or suggested in its labeling, the district court converted indirect infringement into a strict liability offense where Navinta was held responsible for possible downstream uses that it did nothing to encourage."  In support, Navinta cited the Federal Circuit's two off-label use decisions of 2003: Warner-Lambert v. Apotex and Allergan v. Alcon.  In those cases, the Federal Circuit concluded that the ANDA filers were not liable for inducement of infringement of patents claiming off-label uses.

    On Tuesday, the Federal Circuit issued its decision on the appeal.  Unfortunately, however, it based its decision on the least interesting of the three issues that Navinta appealed.  The Federal Circuit concluded that due to a break in the chain of title, Abraxis did not own the patents-in-suit when it filed the Complaint, and Abraxis therefore lacked standing.  Accordingly, the Federal Circuit reversed and vacated the district court's denial of Abraxis's second motion to dismiss, and remanded with instructions for the district court to dismiss Abraxis's complaint without prejudice.

    In all likelihood, Abraxis will refile its Complaint against Navinta in the district court, the district court will quickly issue a final judgment on the merits of the infringement claims, Navinta will appeal again and the case will be back at the Federal Circuit.  There is, therefore, still hope that the Federal Circuit will weigh in on the interesting issues in this case.

    FEDERAL CIRCUIT APPEAL BREIFS:

  • Sun Pharm. Indus. v. Eli Lilly & Co., No. 2010-1105 (Fed. Cir. 2010)

    By a vote of 5-4, the Federal Circuit on Monday denied Eli Lilly's petition for panel rehearing or rehearing en banc from the court's July decision that affirmed the invalidity of Lilly's U.S. Patent No. 5,426,826 for obviousness-type double patenting.  Judge Newman was joined by Judges Rader, Lourie and Linn in dissent.

    In addition to the '826 patent, which claims the use of gemcitibine for treating cancer, Lilly owns U.S. Patent No. 4,808,614, which claims the gemcitibine compound.  The '614 patent discloses, but does not claim, the anticancer utility of gemcitibine.  The Federal Circuit panel decision in July, authored by Judge Prost and joined by Judges Bryson and Gajarsa, affirmed the invalidity of the '826 patent on grounds of obviousness-type double patenting, stating that "[t]he asserted claims of the later '826 patent simply claim the anticancer use disclosed in the specification of the '614 patent."

    In dissent, Judge Newman cited numerous precedents of the Federal Circuit and its predecessor court for establishing the rule that "double-patenting is altogether a matter of what is claimed."  She concluded, "Uniformly, unlike examination for obviousness based on prior art, the issue of obviousness-type double patenting is directed to whether the invention claimed in a later patent is an obvious variant of the invention claimed in an earlier patent.  The panel opinion violates a vast body of precedent."

    The case attracted the attention of several amici curiae, including BIO, PhRMA, Teva and Washington Legal Foundation.  Judge Newman cited a portion of BIO's amicus brief to emphasize the importance of method-of-use patents to the pharmaceutical industry:

    BIO's members routinely engage in continuing research on basic biotechnology inventions even after initial patent applications have been filed.  Often, such research reveals something new about a basic invention, including better and unexpected new ways of using it that require patent protection for their commercial development.

    Judge Newman concluded with a rebuke of the panel for changing the law of double patenting without en banc consideration.  She stated:

    If the majority of the court now believes, as a matter of policy, that the law should be changed in this new direction, en banc treatment is particularly appropriate, for the court's rule is that the earlier precedent prevails unless overruled en banc.  A situation in which the court ignores this rule, and applies whatever law the panel prefers, is an indictment of the ability of this court to provide stable law in the areas entrusted to us.

  • In re Andrx Pharmaceuticals, Inc., Misc. Docket No. 943 (Fed. Cir. 2010)

    In 2002, Astra prevailed over Andrx in Paragraph IV litigation concerning Andrx's ANDA for a generic version of Prilosec (omeprazole).  Shortly before and during the course of the bench trial, Astra learned that Andrx had manufactured multiple batches of its ANDA product on a commercial scale.

    In 2008, following affirmance by the Federal Circuit of the district court decisions on infringement and validity, Astra filed a motion for leave to file a supplemental complaint to seek monetary damages for Andrx's commercial-scale manufacture of its infringing ANDA product.  In an opinion filed in February of this year, the district court granted Astra's motion.

    Andrx responded by petitioning the Federal Circuit for a writ of mandamus to direct the district court to vacate its order granting Astra leave to file its supplemental complaint.  Yesterday, in a four-page opinion, the Federal Circuit denied Andrx's petition.

    In its opinion yesterday, the Federal Circuit began by noting, "A party seeking a writ of mandamus bears the burden of proving that it has no other means of obtaining the relief desired.  The court explained that "Andrx has not shown why it cannot effectively raise any challenge to the district court's determination to allow Astra's damages claim after an appeal from final judgment."  According to the court, a writ of mandamus is an extraordinary writ, and "Extraordinary writs are not substitutes for appeals, even if hardship may result from delay and perhaps unnecessary trial."

    Perhaps more interesting than the Federal Circuit's denial of Andrx's mandamus petition is what the district court will do with Astra's damages claim.  It appears that Andrx never marketed its commercial-scale batches and, for this reason, Andrx argued to the district court that Astra's supplemental complaint would be futile.  The district court disagreed, however, noting that Astra may be entitled to reasonable-royalty damages based simply on Andrx's manufacture of the batches.  The damages questions may answered, initially at least, by a jury.

  • Teva Pharms. USA v. Eisai et al., No. 2009-1593 (Fed. Cir. 2010)

    In a 3-0 decision last week, the Federal Circuit held that Teva has standing to challenge four of Eisai’s Orange Book-listed patents on Aricept (donepezil)–notwithstanding that Eisai statutorily disclaimed two of the patents and granted Teva covenants not to sue on the others.  The Federal Circuit essentially decided that the facts of this case were more like those in Caraco v. Forest, where the court determined there was declaratory judgment jurisdiction for a subsequent Paragraph IV filer, than those in Janssen v. Apotex, where the court determined there was not.

    All of these cases involve at least two Orange Book-listed patents, an earlier-expiring patent (“EEP”) and a later-expiring patent (“LEP”), and a first Paragraph IV (“P.IV”) filer who has earned 180-day exclusivity by virtue of not being sued on the LEP.  A subsequent P.IV filer then comes along and, seeking to trigger the first filer’s exclusivity, files a declaratory judgment claim that the LEP is invalid or not infringed.  The patent owner grants the subsequent filer a covenant not to sue on the LEP and moves to dismiss the DJ claim (arguing, “we granted a covenant not to sue, so there’s no threat of a lawsuit, and therefore no case or controversy”).

    In Caraco, the first filer, Ivax, filed P.IV certifications on the EEP and LEP.  The patent owner, Forest Labs, sued Ivax on the EEP but not the LEP.  The Federal Circuit found the EEP valid and infringed by Ivax.  Thus, Ivax couldn’t lauch (and its 180-day exclusivity couldn’t start) until the EEP expired.  The subsequent filer, Caraco, filed P.IV certifications on both the EEP and LEP and, like the first filer, was sued on the EEP but not on the LEP.  Thus, in order to trigger Ivax’s 180-day exclusivity, Caraco filed a DJ action on the LEP and sought a declaration of noninfringement.

    Finding that Caraco had standing to pursue its DJ action on the LEP, the Federal Circuit stated, “Caraco alleges that it has been restrained from the free exploitation of non-infringing goods.  This is exactly the type of injury-in-fact that is sufficient to establish Article III standing under our caselaw.”  More specifically, according to the court, “the injury upon which Caraco’s suit is premised is the delay in triggering Ivax’s exclusivity period between now and when the [EEP] expires in 2012, not any delay in triggering Ivax’s exclusivity period after the [EEP] expires.”  To cure the injury, it wasn’t enough that Caraco could obtain a judgment that the EEP was invalid; in order to trigger Ivax’s exclusivity and market its noninfringing goods, Caraco also needed to obtain a judgment of invalidity or noninfringement on the LEP.  Moreover, the court found that Caraco’s injury was “fairly traceable” to Forest because if Forest hadn’t listed the LEP in the Orange Book, Caraco would not have been blocked from the market.

    In Janssen, the first filer, Teva, filed a Paragraph III (P.III) certification on the EEP and a P.IV on the LEP (actually two LEPs, but the number doesn’t matter).  The patent owner, Janssen, declined to sue Teva.  Due to Teva’s P.III certification, Teva couldn’t launch (and its 180-day exclusivity couldn’t start) until the EEP expired.  The subsequent filer, Apotex, filed P.IV certifications on both the EEP and LEP but, like the subsequent filer in Caraco, was sued only on the EEP.  Thus, in order to trigger Teva’s 180-day exclusivity, Apotex filed a DJ action on the LEP.  But while its DJ claim was pending, Apotex stipulated to the validity of the EEP.  This fact–the only essential difference between Janssen and Caraco–turned out to be dispositive.

    Finding that Apotex lacked standing to pursue its DJ action on the LEP, the Federal Circuit stated, “The key difference between Caraco and this case is that the harm that gave rise to the jurisdiction over the declaratory judgment claim in Caraco ceased to exist once Apotex stipulated to the validity, infringement, and enforceability of the [EEP].  Therefore, unlike Caraco, Apotex cannot claim that at the time of the district court’s dismissal it was being excluded from selling a noninfringing product by an invalid patent–it stipulated to the validity of the [EEP].”  In other words, any delay in triggering the first filer’s exclusivity before expiration of the EEP was self-inflicted (due to Apotex’s stipulation), and not “fairly traceable” to the patent owner.

    Which brings us to last week’s case.  In Teva v. Eisai, the first filer, Ranbaxy, filed a P.III certification on the EEP and a P.IV on the LEP (actually four LEPs; again, the number doesn’t matter).  Janssen declined to sue Ranbaxy.  Due to its P.III certification, Ranbaxy couldn’t launch until the EEP expired.  The subsequent filer, Teva in this case, filed P.IV certifications on both the EEP and LEP but, like the subsequent filers in Caraco and Janssen, was sued only on the EEP.  Thus, like the subsequent filers in the two prior cases, Teva filed a DJ action on the LEP in order to trigger the first filer’s 180-day exclusivity.  The wrinkle in this case is that Eisai obtained a preliminary injunction on the EEP against Teva.  Eisai argued that the preliminary injunction was like Apotex’s stipulation in the Janssen case.  The district court agreed and dismissed Teva’s DJ action.  But the Federal Circuit reversed.

    Finding that Teva had standing to pursue its DJ action on the LEP, the Federal Circuit stated:

    Eisai is correct that Teva [has] been subject to a preliminary injunction arising out of the separate [EEP] patent litigation. . . .  As the name itself admits, however, that injunction was “preliminary.”  Indeed, the underlying litigation was still ongoing; there had been no final determination as to the validity, infringement, or enforceability of the ‘841 patent.  Thus, unlike the generic drug company in Janssen which stipulated to the validity, enforceability and infringement of an Orange Book patent, there was no equivalent final judgment regarding the [EEP].  Indeed, Teva would not necessarily remain subject to an injunction, depending on the outcome of the [EEP] patent infringement litigation.

    In other words, since the injunction on the EEP was only preliminary, it was not like Apotex’s stipulation, and there was still a risk that the subsequent filer’s drug product, which allegedly did not infringe the LEP, was being blocked from the market by an invalid EEP.

    There’s only one problem with this reasoning: the parties had stipulated in July that the preliminary injunction would remain in effect until the EEP expires on November 25, 2010.  The court addressed this fact in a footnote: “This stipulation does not change our analysis in this case for two reasons.  First, it does not affect jurisdiction at the outset of this appeal.  Second, given that the stipulation is only relevant, if at all, until the expiration of the [EEP] patent on November 25, after that date the DJ patents would bar Teva from obtaining FDA approval earlier and marketing” its generic drug product.

    As to the court’s first reason, however, the court has confirmed–including as recently as the Janssen case–that jurisdiction over a declaratory judgment action must be present “at all stages of review.”  And as to the court’s second reason, any delay in marketing after expiration of the EEP is a different injury than the one upon which the Caraco decision was based (delay before expiration of the EEP).

    In fact, indefinite delay is an injury that the Federal Circuit previously found to be insufficient to give rise to declaratory judgment jurisdiction.  In the Janssen case, Apotex argued that “absent a declaratory judgment action, its approval of its noninfringing generic risperidone product will be indefinitely delayed until Teva’s 180-day exclusivity period is triggered.”  In response, the Janssen court explained:

    In Caraco, this court considered the same harm that Apotex alleges and concluded that it was insufficient to create a justiciable Article III case or controversy.  See Caraco (noting possible delay of the first Paragraph IV ANDA filer launching after the expiration of a patent is too speculative to create a justiciable Article III case or controversy).  Our decision in Caraco is supported by Supreme Court precedent which has emphasized that the dispute must be “definite and concrete” and be “real and substantial” in order to give rise to justiciable Article III case or controversy.  Therefore, we hold that a possible delay in the future of a first Paragraph IV ANDA filer in launching its generic product does not give rise to declaratory judgment jurisdiction.

    Thus, the Federal Circuit’s stated rationale for finding declaratory judgment jurisdiction in Teva v. Eisai is inconsistent with its holdings in Caraco and Janssen.  There may be some other, unstated, way of reconciling the outcomes.  But if the court is changing course–and holding that indefinite delay after expiration of an EEP is a legally cognizable injury–it would be a significant expansion of declaratory judgment jurisdiction.

  • American Conference Institute will be holding its 11th annual "Maximizing Pharmaceutical Patent Life Cycles" conference on October 6th and 7th in New York City.  This conference is extremely popular with in-house and outside counsel for both innovator and generic pharmaceutical companies.

    Shashank Upadhye, Vice President, Global Intellectual Property for Apotex, and I will be presenting "Ariad v. Lilly: The Reaffirmation of Written Description and Enablement and Their Collective Role in Patent Life Cycle Management."  The rest of the agenda includes:

    • Patent Reform Revisited: Pondering Its Impact on the Pharmaceutical Industry
    • Understanding the Particulars, Peculiarities and Politics of Biosimilars and Their Impact on Pharmaceutical Patent Life Cycle Management
    • Of Biosimilar Applications (BPCIA) and ANDAs (Hatch-Waxman)
    • New Patent Term Adjustment and Patent Term Extension Decisions and Their Significance for Small and Large Molecules
    • Obviousness Continued: How KSR and Its Progeny are Impacting the Patent Life of Drug and Biological Products
    • Bilski, Prometheus and Myriad: Understanding the Madness over Method Claims in the Pharmaceutical Industry
    • Eye on the CAFC and District Courts: Life Cycle Lessons Derived from Paragraph IV Litigation
    • FTC Keynote: Competition Considerations for Pharmaceutical Patent Life Cycle Management (presented by Markus H. Meier, Assistant Director of the Health Care Division at the FTC)
    • New Controversies and Concerns Associated with Orange Book Listing and Labeling Strategies
    • Exclusivity: Modes, Methods, Forfeitures and Relinquishments
    • FDA Keynote: Update on FDA Activities Relative to Pharmaceutical Patent Life Cycles for Small and Large Molecules (presented by Elizabeth Dickinson, Associate Chief Counsel at the FDA)
    • Learning to Navigate the New Limits and Boundaries of the Safe Harbor

    In addition, two pre-conference workshops is offered on October 5th: "Hatch-Waxman and BPCIA 101: A Primer on IP Basics and Regulatory Fundamentals"; and "Pharmaceutical Patent Life Cycle Strategies for the EU and Emerging Markets".  And a post-conference workshop is offered on October 8th: "The Master Class on Patent Term Adjustment and Patent Term Extensions for Pharmaceutical and Biological Patents".

    ACI is offering Orange Book Blog readers a discounted registration fee: use discount code OBB to save $400.  For more information or to register, please visit the conference website.