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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

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

Venable LLP

Spotlight On: Lantus® / Lantus® SoloSTAR® (insulin glargine recombinant) / Basaglar® (insulin glargine) / Semglee® (insulin...

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Insulin Glargine 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

American Conference Institute (ACI)

[Event] 23rd Advanced Summit on Life Sciences Patents - May 19th - 20th, New York, NY

At ACI’s 23rd Advanced Summit on Life Sciences Patents, you can expect informational overviews and thorough discussion of every facet of the industry. In a time of major legislative, regulatory, and judicial change, you can't...more

Jones Day

Innovative Insights: Legal Updates in Life Sciences | First Quarter 2025

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Artificial intelligence is revolutionizing life science R&D (particularly in the realm of drug discovery) and challenging the traditional "human inventorship" requirement for U.S. patents. Recent guidance from the USPTO...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Key Patent Considerations for Antibody Drug Conjugates (ADCs)

In 1910, German scientist Paul Ehrlich introduced a groundbreaking concept to the world: chemical compounds could be engineered to interact with unique receptors on disease-causing cells while avoiding interaction with...more

Foley & Lardner LLP

Jepson Claim Format Does Not Avoid Written Description Scrutiny

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Current written description jurisprudence can make it difficult to obtain broad antibody patents, leading practitioners to explore alternative claiming strategies in an effort to bypass the limited scope afforded under the...more

Jones Day

Blurring the Line Between the Dry and Wet Lab: Joint Inventorship in AI-Assisted Life Science Inventions

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In 2024, not one but two Nobel Prizes (in Chemistry and Physics) were awarded to researchers for their work in artificial intelligence ("AI"). Particularly noteworthy for the life science community is the Nobel Prize in...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

Cooley LLP

End of the Road for Jepson Format Claims in the Life Sciences?

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In In re: Xencor, Inc., the US Court of Appeals for the Federal Circuit confirmed that the limiting preamble of a Jepson claim must be supported by the specification with “sufficient written description.” In its decision, the...more

McDermott Will & Emery

What’s the (Re)issue? Patent Term Extensions for Reissue Patents

McDermott Will & Emery on

Addressing the calculation of patent term extensions (PTEs) under the Hatch-Waxman Act, the US Court of Appeals for the Federal Circuit affirmed a district court decision that under the act the issue date of the original...more

Foley & Lardner LLP

Federal Circuit Decision Could Encourage More Reissue Patents

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The Patent Term Extension (PTE) provisions of 35 U.S.C. § 156 compensate pharmaceutical patent owners for time they are not able to enjoy commercial market exclusivity because their products are not yet approved by the U.S....more

Goodwin

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

Goodwin on

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

Knobbe Martens on

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

Foley & Lardner LLP

GLP-1 Receptor Agonists and Patent Strategy: Securing Patent Protection for New Use of Old Drugs

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GLP-1 receptor agonists (GLP-1RAs) were initially approved for diabetes treatment (e.g., Ozempic®) but have revolutionized weight management (e.g., Wegovy®) and are now being explored for treating a wide range of health...more

McDonnell Boehnen Hulbert & Berghoff LLP

Immunogen, Inc. v. Stewart (Fed. Cir. 2025)

After creating something of a frisson due to the apprehension that the Federal Circuit might be convinced to re-evaluate whether it was a necessary element for establishing obviousness for the skilled artisan to have had a...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)...

Venable LLP on

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

Baker Botts L.L.P.

Maximizing Patent Term in the United States: Patent Term Adjustment, Patent Term Extension, and the Evolving Law of...

Baker Botts L.L.P. on

Under U.S. law, most patents are limited to a term of 20 years from the earliest nonprovisional filing date. However, Patent Term Adjustment (PTA) and Patent Term Extension (PTE) can be used in certain circumstances to gain...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: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

Venable LLP on

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

Venable LLP on

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

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