News & Analysis as of

Pharmaceutical Patents Patent Trial and Appeal Board United States Patent and Trademark Office

Wolf, Greenfield & Sacks, P.C.

Strategic Uses and Considerations for Reissue Applications (Part 2 of 3)

Reissue applications represent a very small fraction of the total number of applications filed at the USPTO each year. Indeed, at the midpoint of 2025, over 1.2 million utility applications have been filed, with less than 300...more

Venable LLP

PTAB Director Discretionarily Denies Opdivo® IPRs Based on Settled Expectations of Patent Owner

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On July 24, 2025, the PTO Acting Director Coke Morgan Stewart discretionarily denied Amgen’s IPR2025-00601 and IPR2025-00602 challenging Bristol-Myers Squibb’s (“BMS”) U.S. Patent Nos. 9,856,320 (“the ’320 patent”) and...more

Jones Day

Discretionary Denial of IPR Institution Due to Advanced Hatch-Waxman Litigation

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In a recent decision, the Patent Trial and Appeals Board (“PTAB”) exercised its discretion under 35 U.S.C. § 314(a) to deny institution of an inter partes review (“IPR”) after applying the Fintiv factors, despite Petitioner’s...more

Jones Day

Acting Director Denies IPR Institution Based on “Settled Expectations”

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Under a new U.S. Patent and Trademark Office (“USPTO”) policy issued in March 2025, pre-institution inter partes review (“IPR”) proceedings are now bifurcated, consisting of a first phase in which the director considers...more

McDonnell Boehnen Hulbert & Berghoff LLP

MSN Laboratories Private Ltd. v. Bausch Health Ireland Ltd. (Fed. Cir. 2025)

As has been noted recently (Agilent Technologies, Inc. v. Synthego Corp.), fact-based decisions from the U.S. Patent and Trademark Office (typically from the Patent Trial and Appeal Board) are reviewed under the substantial...more

Jones Day

USPTO Acting Director Denies IPR Institution Based on "Settled Expectations"

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Under a new U.S. Patent and Trademark Office ("USPTO") policy issued in March 2025, pre-institution inter partes review ("IPR") proceedings are now bifurcated, consisting of a first phase in which the director considers...more

Fish & Richardson

The PREVAIL Act Is Back. Will It Prevail This Time?

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On May 1, 2025, Senators Chris Coons (D-DE), Thom Tillis (R-NC), Dick Durbin (D-IL), and Mazie Hirono (D-HI) reintroduced the Promoting and Respecting Economically Vital American Innovation Leadership (PREVAIL) Act. The...more

Jones Day

April 2025 Institution Rate Slips Below 45 Percent

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The PTAB has published its monthly statistics wrap up for April 2025. As expected, those statistics show a significant decline in the institution rate compared to the first six months of the fiscal year. In those first six...more

Foley Hoag LLP

A Super CRISPR Week – the Week of May 12, 2025: Patent Battles, Clinical Milestones, and Next-Gen Tools

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Key Takeaways: Federal Circuit Reopens CRISPR-Cas9 Priority Fight. The CAFC vacated the PTAB’s earlier ruling that UC lacked prior conception of CRISPR-Cas9 in eukaryotic cells, remanding the interference for reconsideration...more

Wilson Sonsini Goodrich & Rosati

Federal Circuit Revives CRISPR-Cas9 Patent Priority Dispute

The CRISPR-Cas9 patent landscape remains complex and unsettled. The Federal Circuit’s latest decision in University of California v. Broad Institute1 revived the high-stakes dispute between UC2 and Broad3 over foundational...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Pharmaceutical Patent Protections

This week, we take a closer look at two precedential cases concerning pharmaceutical patent protections as applied to drugs in development. In Incyte Corp. v. Sun Pharm., Judge Hughes entered a dissent pushing back on the...more

Wilson Sonsini Goodrich & Rosati

Method of Treatment Claim’s Limiting Preamble Must Satisfy the Written Description Requirement

On March 13, 2025, the U.S. Court of Appeals for the Federal Circuit issued a decision in the case of In Re: Xencor, Inc. In this Appeal from the Appeals Review Panel of the Patent Trial and Appeal Board (ARP), with regard to...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Sterne Kessler’s Reissue, Reexamination, and Supplemental Examination Practice Tips – March 2025

In the mid-2000s, the U.S. Patent Office (USPTO) determined that reexaminations would be more consistent and legally correct if performed by a centralized set of experienced and specially trained Examiners. As a result, the...more

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Xencor Decision: Jepson Claims Require Written Description for Their...

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On March 13, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Xencor, Inc. (the Xencor decision). The Xencor decision affirms the decision of the Appeals Review Panel...more

Knobbe Martens

Jepson Claim Preamble Requires Written Description Support for Conventional Aspects of the Invention

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IN RE: XENCOR, INC. Before Hughes, Stark, and Schroeder (sitting by designation).  Appeal from the U.S. Patent and Trademark Office, Patent Trial and Appeal Board. To provide adequate written description for a Jepson claim,...more

ArentFox Schiff

Federal Circuit Affirms ImmunoGen Patent Obviousness

ArentFox Schiff on

In a precedential opinion issued on March 6, the Federal Circuit affirmed the US District Court for the Eastern District of Virginia that the claims in ImmunoGen’s US patent application 14/509,809 (“the ’809 application,”...more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

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Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

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Trastuzumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

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Pegfilgrastim Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - March...

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Rituximab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Enbrel® (etanercept) / Erelzi® (etanercept-szzs) / Eticovo® (etanercept-ykro) - February 2025

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Etanercept Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Humira® (adalimumab) / Amjevita™ (adalimumab-atto) / Cyltezo® (adalimumab-adbm) / Hyrimoz™ (adalimumab-adaz) /...

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Adalimumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Jenner & Block

PREVAIL Act Advances to the Senate: Potential Implications for Patent Challenges

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On November 21, 2024, the Senate Judiciary Committee voted by a narrow 11–10 margin to advance the PREVAIL Act to the Senate for consideration. The PREVAIL Act, or the Promoting and Respecting Economically Vital American...more

Alston & Bird

Intellectual Property Litigation Newsletter | January 2025

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Welcome to the Intellectual Property Litigation Newsletter, our review of decisions and trends in the intellectual property arena. In this edition, we learn that that changing a definition has consequences, an apex...more

Wolf, Greenfield & Sacks, P.C.

A Look Ahead: Key Intellectual Property Legal Developments in 2024 - and What to Expect in 2025

From potential legal challenges to Chinese biopharma supply chains, Europe’s new Unified Patent Court (UPC), landmark decisions in life sciences, pharma’s Orange Book listings, design patent rejections, and likely shifts at...more

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