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Rounding Error: Intrinsic Evidence Informs Plain and Ordinary Meaning

Vacating a stipulated infringement judgment based on an incorrect claim construction, the US Court of Appeals for the Federal Circuit explained that it is improper to isolate claim language from the intrinsic evidence when determining the plain and ordinary meaning of a disputed term. AstraZeneca AB v. Mylan Pharms. Inc., Case No. 21-1729 (Fed. Cir. Dec. 8, 2021) (Stoll, J.) (Taranto, J., dissenting).

AstraZeneca sued Mylan Pharmaceuticals for infringement of three patents listed in the US Food and Drug Administration’s (FDA) orange book covering the Symbicort® pressurized metered-dose inhaler for the treatment of asthma and COPD. 3M submitted an abbreviated new drug application (ANDA) to the FDA to manufacture and sell a generic version of the Symbicort® inhaler and certain interests to the ANDA were later transferred to Mylan. After receiving a Paragraph IV letter from Mylan, AstraZeneca filed an infringement suit.

Shortly before trial, the district court held a claim construction hearing to determine the meaning of “0.001%,” the claimed concentration of PVP (one of the active ingredients). The district court construed the term based on its “plain and ordinary meaning, that is, expressed with one significant digit.” Based on this definition, Mylan stipulated to infringement and the district court entered judgment. The district court held a bench trial on invalidity, ultimately determining that Mylan did not prove that the claims were invalid as obvious. Mylan appealed the stipulated judgment stemming from the claim construction determination and the judgment of no invalidity.

First, Mylan challenged the district court’s claim construction of “0.001%.” AstraZeneca argued that the district court improperly construed the term to encompass a range from 0.0005% to 0.0014%. Mylan contended that, in view of the specification and the prosecution history, the term was to be defined precisely at 0.001% with only “minor variations” allowed. The Federal Circuit agreed, finding that Mylan’s proposed construction was more properly aligned with the patent’s description as further informed by the prosecution history.

The Federal Circuit stated that the proper construction of 0.001% only allowed minor variations from 0.00095% to 0.00104%. There was no dispute that the term 0.001% would ordinarily encompass the range of 0.0005% to 0.0014%. AstraZeneca argued that this “ordinary meaning” would control absent lexicography or disclaimer. The Court disagreed, finding that it would improperly isolate the term from the claim language, specification and patent prosecution history. The Court explained that the “ordinary meaning” is not the ordinary meaning in the abstract but is instead the “meaning to the ordinary artisan after reading the entire patent,” and therefore the claims must be read in view of both the written description and the prosecution history. The Court’s rationale for narrower construction was based on the intrinsic record reflecting that the written description and prosecution history showed that very minor differences in PVP concentration would impact stability.

The Federal Circuit found that the written description explained that stability was one of the most important factors and that even very minor differences in PVP concentration could impact stability. The written description also [...]

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Shots Fired: Challenger Must Have Requisite Standing Before Appealing Unfavorable IPR Decisions

The US Court of Appeals for the Federal Circuit found, in the context of an appeal from an inter partes review (IPR) decision, that the appellant had Article III standing and affirmed a Patent Trial & Appeal Board (Board) decision, holding the challenged claims unpatentable as obvious. ModernaTX, Inc. v. Arbutus Biopharma Corporation, Case No. 20-2329 (Fed. Cir. Dec 2, 2021) (Lourie, J.)

Arbutus owns a patent pertaining to “stable nucleic acid-lipid particles (SNALP) comprising a nucleic acid (such as one or more interfering RNA), methods of making the SNALP, and methods of delivering and/or administering the SNALP.” Moderna petitioned for IPR of the patent, asserting three grounds:

  1. Moderna alleged that all claims of the challenged patent would have been anticipated and/or obvious in light of International Pat. Publ. WO 2005/007196 (‘196 PCT) or US Pat. Publ. 2006/0134189 (‘189 publication).
  2. Moderna alleged that all claims of the challenged patent would have been obvious over a combination of the ‘196 PCT, the ‘189 publication, Lin and Ahmad.
  3. Moderna alleged that all claims of the challenged patent were anticipated by US Pat. Publ. 2006/0240554 (‘554 publication), and alternatively that the claims would have been obvious over the ‘554 publication.

The Board rejected each of Moderna’s allegations, finding that the claims were not unpatentable as obvious. Moderna appealed.

Before addressing Moderna’s appeal on its merits, the Federal Circuit addressed whether Moderna had proper standing to challenge the Board’s decision. The Court stated that well-established precedent dictates that an appellant seeking review of a Board decision in an IPR must have suffered an injury in fact that is fairly traceable to the challenged conduct of the appellee and is likely to be redressed by a favorable judicial decision. The Court underscored that under IPR statute, there is no standing requirement for petitioners to request institution of IPR by the Board, meaning that a requester need not have a concrete stake in the outcome. Additionally, where the statue itself grants judicial review (such as in the case of an IPR), standing criteria of immediacy and redressability may be “relaxed.” Nonetheless, the Court explained that a party’s participation in the underlying IPR alone does not confer standing on that party to appeal the Board decision before an Article III court such as the Federal Circuit. The party seeking review (in this case Moderna) must show that it possesses requisite injury for standing to appeal.

Moderna asserted that substantial risk existed that Arbutus would bring an infringement suit against Moderna based on Moderna’s COVID-19 vaccine if the challenged patent was to remain valid. In support, Moderna submitted a declaration from its senior vice president and deputy general counsel that Moderna was working to harness proprietary mRNA technology and planned on releasing and applying for emergency use authorization for a COVID-19 vaccine in December 2020. The declaration also described how Arbutus’s conduct created a substantial risk that it would bring subsequent infringement action against Moderna. An example of such conduct was a series of public statements [...]

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Post-AIA Patents Are Not Shielded from Interferences

Addressing the applicability of interference proceedings to patent applications filed after the Leahy-Smith America Invents Act (AIA) was enacted, the Patent Trial & Appeal Board (Board) found it proper to declare an interference between a patent application with a priority date before March 16, 2013, the AIA implementation date, and a patent with a priority date after March 16, 2013. SNIPR Technologies Limited v. The Rockefeller University, Pat. Interf. No. 106,123 (DK) (PTAB Nov. 19, 2021) (Katz, APJ).

The AIA switched the US patent system from a “first to invent” to a “first inventor to file” system. In line with this change, the AIA eliminated the patentability requirement under 35 U.S.C. § 102(g), regarding whether another inventor made the invention first, and the interference proceeding under 35 U.S.C. §135 for determining who invented the claimed invention first. Section 3(n)(2) of the AIA provides a timing provision relating to this change. Under this section, the interference proceeding “shall apply to each claim of an application for patent, and any patent issued thereon, for which the amendments made by this section also apply, if such application or patent contains or contained at any time, a claim [having a priority date before March 16, 2013].”

The US Patent & Trademark Office (PTO) declared an interference between several patents owned by SNIPR and a pending application to The Rockefeller University. The claims involved were drawn to a method of killing or modifying specific bacteria in a mixed population of bacteria with different species using the CRISPR-mediated gene editing technology. The Rockefeller application asserted a priority date of February 7, 2013 (i.e., pre-AIA), while the SNIPR patents asserted the priority date of May 3, 2016 (i.e., post-AIA). SNIPR argued that the interference proceeding was improper since all involved patents were filed after the AIA was enacted.

The Board rejected SNIPR’s argument, explaining that Section 3(n)(2) provides for continuation of interference under certain circumstances. The Board noted that the patentability requirement under 35 U.S.C. §102(g) and interference still apply to each claim having a priority date before March 16, 2013, such as the claims of Rockefeller’s involved application. Accordingly, when the Rockefeller claims would otherwise be allowable, except for the existence of an interference with other claims such as SNIPR’s claims, Section 3(n)(2) necessarily calls for an interference proceeding between the Rockefeller application and the SNIPR patents. Otherwise, the PTO would not be able to determine whether Rockefeller was entitled to a patent under 35 U.S.C. §102(g).

The Board further reasoned that, instead of ending all interferences at the implementation of the AIA, US Congress enacted Section 3(n)(2) to continue the interference proceeding as applicable to certain cases after AIA. Congress also did not explicitly require that cases involved in interferences must all have priority dates before March 16, 2013. Therefore, the Board found that Congress contemplated interferences between pre-AIA and post-AIA applications and patents. Accordingly, the Board ruled in Rockefeller’s favor, finding it was the first to invent the claimed technology.




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Obvious to Try Requires Reasonable Expectation of Success Tethered to Claimed Invention

Addressing obviousness in the context of method of treatment claims using particular drug dosages, the US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) final written decision holding that Teva failed to prove obviousness because it failed to show a reasonable expectation of success. Teva Pharms., LLC v. Corcept Therapeutics, Inc., Case No. 21-1360 (Fed. Cir. Dec. 7, 2021) (Moore, C.J.)

Corcept filed a New Drug Application (NDA) for Korlym, a 300 mg mifepristone tablet administered to certain patients with Cushing’s syndrome. The US Food and Drug Administration (FDA) approved Corcept’s application but required a drug-drug interaction clinical trial to determine drug safety when co-administered with strong CYP3A inhibitors such as ketoconazole (Lee memorandum). Corcept conducted the drug-drug interaction study and received a patent relating to methods of treating Cushing’s syndrome by co-administering mifepristone and a strong CYP3A inhibitor based on the data from the Lee memorandum.

Teva sought post-grant review of the patent after Corcept asserted it against Teva in district court. Teva argued that the patent would have been obvious in view of Korlym’s label and the Lee memorandum and submitted a supporting expert declaration. The Board held that Teva failed to prove that a skilled artisan would have had a reasonable expectation of success for safe co-administration of more than 300 mg of mifepristone with a strong CYP3A inhibitor, and thus failed to prove that the patent was obvious. Teva appealed, arguing that the Board erroneously required precise predictability rather than reasonable expectation of success in achieving the claimed invention, and that the Board did not apply Federal Circuit prior art range precedents.

The Federal Circuit affirmed the Board’s decision. Turning first to reasonable expectation of success, the Court explained that the analysis must be tied to the scope of the claimed invention. Because the patent required safe administration of a specific amount of mifepristone, the Board did not err in requiring Teva to show a reasonable expectation of success for a specific mifepristone dosage. Applying this correct standard, the Court found that the evidence supported that a skilled artisan would have had no expectation as to whether co-administering dosages of mifepristone above the 300 mg/day threshold set forth in the Korlym label would be successful. The Federal Circuit also agreed with the Board that Teva’s expert testimony supported a finding of no expectation of success in achieving the claimed invention based on inconsistent testimony before and after institution.

Turning next to the applicability of Federal Circuit prior art range precedents, the Federal Circuit found that Teva had failed to prove that the general working conditions disclosed in the prior art encompassed the claimed invention. Substantial evidence supported the Board’s finding that there was no overlap in ranges because the prior art (Korlym label and industry publications) capped the range of co-administration dosages at 300 mg/day. The Court also noted that Teva’s reliance on mifepristone monotherapy dosages to create an overlap in the claimed ranges failed because the patent claims [...]

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PTO Will Transition to Electronic Issuance of Patents and Trademarks

The US Patent & Trademark Office (PTO) announced on December 10, 2021, that it intends to transition to electronic issuance of patents and trademarks in 2022. Under the current rule (37 C.F.R § 1.315), the PTO must deliver or mail a patent “upon issuance to the correspondence address of record.” The PTO will soon issue a notice of proposed rulemaking to seek public feedback on revising the rules of practice to issue patents electronically. Under the proposed changes, the PTO would no longer mail patents to the applicant. Instead, the PTO would issue patents electronically via the Patent Center and Patent Application Image Retrieval, from which the patents could be downloaded and printed.

While no changes to the trademark rules are necessary, the PTO will also issue a public request for comments on replacing paper registration certificates with digital versions.

The PTO believes that electronic issuance will reduce the time it takes for a patent or trademark to issue by about two weeks.

Once the transition is complete, applicants can still receive a paper copy of the issued patents and trademark registration certificates with an embossed gold seal and the director’s signature (i.e., a ribbon certificate) for a fee of $25 per copy.




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Exclusive Licensee Has Constitutional but Not Statutory Standing

The US Court of Appeals for the Federal Circuit vacated the dismissal of an exclusive licensee’s complaint for lack of statutory and constitutional standing, despite affirming that the licensee had no statutory standing where the district court erroneously found no constitutional standing. Univ. of So. Florida Res. Found., Inc. v. Fujifilm Med. Sys. U.S.A., Inc., Case No. 20-1872 (Fed. Cir. Nov. 23, 2021) (sealed opinion issued Oct. 22, 2021) (Stoll, J.)

In April 1997, the University of South Florida (USF) received an invention disclosure related to a workstation-user interface for digital mammography. In September 1997, the inventors, USF and the USF Research Foundation (USFRF) entered into a revenue allocation agreement assigning all rights in the invention to USF. The inventors also entered into a separate assignment agreement in 2002. The patent issued in 2003. The revenue allocation agreement was later followed by a nunc pro tunc license agreement, which recited an effective date of July 1997.

In May 2016, USFRF sued Fujifilm Medical Systems for infringement of the issued patent. USFRF pled that USF assigned its rights in the issued patent to USFRF such that USFRF was “currently the owner” of the patent. In June 2019, Fujifilm moved for summary judgment, arguing that USFRF lacked statutory standing because USF had not fully assigned the patent to USFRF. Five days later, USFRF amended its complaint to state that it was an exclusive licensee (i.e., it was not the assignee).

In May 2020, the district court dismissed the case, finding that USFRF lacked both statutory and constitutional standing. Analyzing the nunc pro tunc license agreement, the district court found a lack of statutory standing because the agreement was silent on (and thus did not transfer to USFRF) the right to sue to enforce the patent. The district court also found that USFRF lacked constitutional standing because USFRF had not established that the invention disclosure number in the license agreement corresponded to the issued patent and had not shown that the nunc pro tunc agreement was signed before the complaint was filed. USFRF appealed.

The Federal Circuit analyzed both statutory and constitutional standing and affirmed the district court’s finding with respect to statutory standing, reasoning that this case was analogous to others in which an exclusive licensee lacked statutory standing because the right to sue was either not transferred or only partially transferred. The Federal Circuit found that the district court had clearly erred with respect to constitutional standing, however. First, the Court held that there had been sufficient evidence tying the invention disclosure identified in the assignment agreement to the issued patent. Second, the Court found that it did not matter when the nunc pro tunc agreement was signed because the original revenue allocation agreement was signed before the complaint was filed and conveyed at least one exclusionary right to USFRF—enough for USFRF to have constitutional standing.

Because “the district court’s dismissal was predicated on constitutional standing,” the Federal Circuit remanded for further proceedings, including determination of whether USFRF may join USF.

[...]

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IPR on Written Description? Claims Found Unpatentable Based on Lack of Entitlement to Priority Date

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) ruling, based on a written description analysis, that certain claims were invalid as anticipated by an earlier priority application from the same family. Indivior UK Ltd. v. Dr. Reddy’s Labs. S.A., Case Nos. 20-2073, -2142 (Fed. Cir. Nov. 24, 2021) (Lourie, J.) (Linn, J., concurring in part and dissenting in part).

Indivior’s patent, which issued from a fifth continuation application claiming priority back to 2009, claimed orally dissolvable films with therapeutic agents. Some of the claims recited numeric ranges, such as “about 40% wt to about 60% wt of a water-soluble polymeric matrix.” Instead of a range, one claim recited a specific amount of “about 48.2% wt” of the polymeric matrix. The patent’s specification did not expressly mention the claimed ranges or the specific 48.2% amount, but it did contain tables comprising quantities of polymer from which Indivior contended a person of ordinary skill in the art could calculate the percentage of polymer by weight.

Indivior argued that the polymer weight percentage limitations were supported by the priority application and, therefore, the patent was entitled to that priority date. Dr. Reddy’s contended that since the polymer weight percentage limitations were added later, an intervening patent publication (Myers) was prior art and anticipated the claims. Indivior did not contest that if Myers was prior art, it anticipated the claims. As a result, the Board’s decision on anticipation under 35 U.S.C. §102 turned on the priority analysis which, in turn, hinged on written description. The Board found that the tables disclosed formulations from which the “48.2% wt” could be calculated and, thus, claims reciting that limitation were not anticipated by Myers. However, the Board found that the claimed ranges (i.e., about 40% wt to about 60% wt) were not disclosed in the specification, and those claims were therefore anticipated by Meyers. Indivior appealed the Board’s anticipation finding, and Dr. Reddy’s appealed the no anticipation finding.

The Federal Circuit first analyzed the specification and concluded that there was no written description support for the broader range of “about 40% wt to about 60% wt.” The Court explained that the range was not disclosed in the specification, the specific values of 40% and 60% were not disclosed and there was another “inconsistent” teaching for weights of “at least 25%.” The Court noted that two specific tables in the specification “do not constitute ranges; they are only specific, particular examples. For written description support of a claimed range, more clarity is required.” The Court explained that “[h]ere, one must select several components, add up the individual values, determine the aggregate percentages, and then couple those aggregate percentages with other examples in the [] application to create an otherwise unstated range. That is not a written description of the claimed range.” The Court applied similar analysis in finding lack of written description for other claims reciting a slightly different range. Ultimately, the Court agreed that there was no written [...]

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Federal Circuit Reverses Judge Stark Decision, Finds Computer Network Patent Eligible

The US Court of Appeals for the Federal Circuit concluded that a representative claim was directed to a patent-eligible improvement to computer functionality, and therefore reversed a decision authored by Judge Leonard P. Stark as a sitting judge in the US District Court for the District of Delaware. Mentone Solutions LLC v. Digi International Inc., Case Nos. 21-1202, -1203 (Fed. Cir. Nov. 15, 2021) (Moore, C.J.) (nonprecedential).

Mentone Solutions sued Digi International for infringement of Mentone’s patent directed to an improvement in dynamic resource allocation in a GPRS cellular network utilizing shifted uplink status flags (USF). Digi moved to dismiss under Fed. R. Civ. P. 12(b)(6), arguing that the patent claims were not patent eligible under 35 U.S.C. § 101. The district court granted the motion to dismiss, holding that the representative claim was patent ineligible for being “directed to the abstract idea of receiving a USF and transmitting data during the appropriate timeslots.” Mentone appealed.

The Federal Circuit began its analysis with a detailed explanation of the claimed technology and how its use of a “shifted USF” improved the normal operation of the communication system, noting that the shifted USF specifically allowed a mobile station to access previously restricted multi-slot configurations.

Reviewing the district court’s § 101 eligibility determination de novo, the Federal Circuit applied the Supreme Court’s two-step Alice framework, first determining whether the representative claim was directed to an abstract idea. The Court explained that in cases involving software, step one often turns on whether the claim focuses on specific asserted improvements in the computer’s capabilities rather than on an abstract idea which merely invoked a computer as a tool.

The Federal Circuit compared the claim in issue to those at issue in Packet Intelligence v. NetScout Sys., in which the Court found that the challenged claims were directed to a problem unique to computer networks and that the patent specification provided details on how the solution to the network problem was achieved. In Packet Intelligence, the Court looked to the patent specification to inform its understanding of the claimed invention and found that the specification made clear that the claimed invention solved a challenge unique to computers.

Similarly, in this case, the Federal Circuit explained that the representative claim did not recite generalized steps to be performed on a computer but rather a particular method of breaking the timing between the downlink USF and the subsequent uplink transmission. The Court noted that the term “shifted USF” was coined by the inventor, and that the specification and figures informed the Court’s understanding of the term, the claimed invention, the technical solution and how the elements of the claim work together to provide the solution. The Court concluded that the claimed invention solved a challenge unique to computer networks and was directed to patent-eligible improvements in computer functionality.

The Federal Circuit rejected the district court’s characterization of the claim as directed to the abstract idea of “receiving a USF and transmitting data during the appropriate [...]

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European UPC Almost Ready to Launch as Austrian Parliament Approves Ratification

Austria became the 13th country to join the protocol on a European Unified Patent Court (UPC) on provisional application (PPA) when the second chamber of the Austrian parliament (Bundesrat) approved the PPA unanimously on December 2, 2021. The Austrian government is expected to formally deposit its ratification shortly.

As expected, Austria followed Slovenia as the last of the 13 EU Member States that were required to ratify in order for the PPA to take effect. This group mandatorily included Germany, Italy and France (i.e., the three Member States in which the most European patents were in effect in 2012).

With the upcoming Austrian ratification, the UPC Preparatory Committee (Committee) will be able to formally start its work. Although there is no timeline set for the initial provisional application stage, the Committee expects that stage to take approximately six to 10 months. As stated in a note published by the Presidency of the Council of the European Union on September 24, 2021, this stage includes the adoption of the secondary legislation of the UPC, including procedures, establishment of a budget, recruitment of judges and administrative staff, election of a president, final configuration and testing of the file management system and ensuring that all IT infrastructure is properly set up and secured. In addition, a working agreement with the European Patent Office (EPO) on patent application and validation remains to be completed. Many observers regard the timeline to complete preparations as challenging, noting that several of these steps will likely require significant discussion.

As noted in the Presidency of the Council’s statement, the UPC will be in force when these preparations are completed, which could be as early as the second half of 2022. The exact start date of the UPC and the Unitary Patent System depends on how long the initial provisional application stage takes. It also depends on when Germany formally deposits its UPC Agreement ratification, which has been withheld so far in order to give the committee time to complete its work. Once the UPC member states agree that the initial provisional application stage is almost complete (likely during the next two to six months), Germany will deposit its UPC Agreement ratification, which will trigger another four-month period before the UPC may officially take its first cases. The UPC will finally open its doors four months after that last instrument deposit. At that point, European patents with unitary effect could be available at the EPO.

Practice Note: Entities doing business in the European Union should check whether their intellectual property strategy is fit for the UPC entering into force and European patents with unitary effect becoming available.




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PTO Publishes Regulations to Implement Trademark Modernization Act

The US Patent and Trademark Office (PTO) recently published its final rules implementing provisions of the Trademark Modernization Act of 2020 (TMA). Most changes are effective as of December 18, 2021, but certain changes (i.e., adjustments to the office action response period) won’t go into effect until December 1, 2022. The new regulations are summarized below.

Ex Parte Proceedings

The TMA created two new ex parte proceedings by which any third party (including the PTO director) can seek to challenge registrations for nonuse: Reexamination and expungement.

One of the TMA’s underlying legislative aims was to clean up the “clutter[ed]” register by removing registrations for marks not properly in use in commerce. These new proceedings offer efficient and less expensive alternatives to a cancellation proceeding before the Trademark Trial and Appeal Board (Board).

Reexamination

Any party (or the PTO director) can file a reexamination action to cancel some or all of the goods or services covered by a use-based registration if the trademark was not in use in commerce in connection with those goods or services before (1) the application filing date when the application was based on Section 1(a) (Use in Commerce), or (2) if the application was filed based on Section 1(b) (Intent to Use), the date the amendment to allege use was filed, or the deadline by which the applicant needed to file a statement of use, whichever is later. A reexamination proceeding must be initiated within the first five years of registration.

Expungement

Similarly, an expungement action can be brought by any party (including the PTO director) seeking to cancel some or all of the goods and/or services from a registration based on the registrant never having used the trademark in commerce in connection with the relevant goods/services. An expungement proceeding must be initiated between the third and 10th year of registration. However, until December 27, 2023, an expungement action can be requested for any registration that is at least three years old, regardless of how long it has been registered.

Requirements for Ex Parte Petitions

The final rules detail the requirements for a petition for expungement or reexamination:

  • A $400 fee
  • The US trademark registration number of the registration being challenged
  • The basis for the petition
  • The name and contact information of the petitioner
  • The name and contact information of the designated attorney, if any
  • A list of the goods and services that are subject to challenge
  • A verified statement of the facts, which should include details of the reasonable investigation of nonuse and a “concise factual statement of the relevant basis for the petition”
  • Copies of the supporting evidence with an itemized index.

A reasonable investigation of nonuse will vary depending on the nature of the goods and/or services but “should focus on the mark disclosed in the registration and the identified goods and/or services, keeping in mind their scope and applicable trade channels.” Also, “[a]s a general matter, a single search using an internet search engine likely would not be [...]

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