News & Analysis as of

Biosimilars Patent Invalidity Pharmaceutical Patents

Venable LLP

Spotlight On: Enbrel® (etanercept) / Erelzi® (etanercept-szzs) / Eticovo® (etanercept-ykro) - July 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: 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: 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: Prolia® / Xgeva® (denosumab) / Jubbonti® / Wyost® (denosumab-bbdz) / Ospomyv™ / Xbryk™ (denosumab-dssb) / Stoboclo®...

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Denosumab Challenged Claim Types in Litigation: Claims are counted in each litigation, so claims from the same patent challenged in multiple litigations are counted more than once. Within each litigation a claim is counted...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: 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

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - July 2025

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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: 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

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: 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: 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

Venable LLP

PTAB Issues Final Written Decision Invalidating Regeneron’s EYLEA® Patent (IPR2023-00442)

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On June 14, 2024, the PTAB issued a Final Written Decision (FWD) in Samsung Bioepis’s IPR2023-00442 (“the -00442 IPR) determining that the challenged claims of Regeneron’s U.S. Patent No. 10,130,681 (the ’681 patent) that...more

Smart & Biggar

PM(NOC) Regulations: Six-year anniversary of major amendments

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September 21, 2023, marked the sixth anniversary of the significant amendments to the Patented Medicines (Notice of Compliance) Regulations (Regulations). This article provides an update on activities in the sixth year...more

Smart & Biggar

2022 Highlights in Canadian Life Sciences IP and Regulatory Law

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Below are highlights from the Rx IP’s team’s 2022 updates (see also our Top 10 Rx IP Update Reads of 2022): Contents: 1. Patent decisions on the merits 2. PMNOC Regulations: Fifth-year anniversary of major amendments,...more

Smart & Biggar

Update on biosimilars in Canada – June 2022

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We provide a further update on developments regarding biosimilars in Canada (approvals, pending submissions, litigation, regulatory, market access and competition) since our last update in October 2021....more

American Conference Institute (ACI)

[Event] 17th Annual Paragraph IV Disputes Conference - April 26th - 27th, New York City, NY

Premier forum which shapes the law, policy, and proceedings of Paragraph IV Litigation is back to New York City on April 26-27! Pharmaceutical patent practitioners from across the globe attend this flagship conference to...more

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

Goodwin

AbbVie Moves to Strike Alvotech’s Final Invalidity and Unenforceability Contentions

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On February 18, 2022, in the first and second wave suits filed by AbbVie Inc. et al. (AbbVie) against Alvotech hf. (Alvotech) regarding an adalimumab biosimilar, AbbVie filed a motion to strike Alvotech’s Final Invalidity and...more

American Conference Institute (ACI)

[Complimentary Conference] Pharma & Biotech Patent Litigation - February 23rd - 24th, 9:00 am - 5:00 pm CET

15 Years of Pharma & Biotech Patent Litigation in Europe - C5’s Pharma & Biotech Patent Litigation in Europe will take place 23–24 February, 2022 in Amsterdam, the Netherlands. This is the only industry-shaping event that...more

Smart & Biggar

Supreme Court of Canada denies Amgen leave to appeal decision invalidating its filgrastim patent

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As previously reported, Amgen sought leave to appeal a decision of the Federal Court of Appeal (2020 FCA 188) affirming Justice Southcott’s decision that the relevant claims of its filgrastim (NEUPOGEN) patent were invalid...more

Goodwin

Alvotech Files Suit Against AbbVie to Invalidate Humira Patent Portfolio

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On May 11, 2021, Alvotech USA and Alvotech hf (jointly, Alvotech) filed a complaint seeking declaratory judgement against AbbVie Inc. and AbbVie Biotechnology Ltd (jointly, AbbVie) in the Eastern District of Virginia. As...more

Goodwin

Litigation Update: Genentech’s Motion to Dismiss Amgen’s Counterclaims Denied in Avastin Biosimilar Litigation

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On February 11, 2020, in the Biogen v. Amgen BPCIA litigation regarding MVASI (bevacizumab-awwb), Amgen’s biosimilar of AVASTIN, Judge Colm Connolly of the Delaware District Court denied most of Genentech’s motion to dismiss...more

Smart & Biggar

Rx IP Update - November 2018

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In This Issue: Ontario Court of Appeal allows Sanofi and Schering to plead that Federal Court ramipril patent invalidity decision was flawed due to “promise doctrine” - In an action by Apotex for compensation from...more

Goodwin

BI Files Answer to AbbVie’s Complaint in Adalimumab Litigation

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As we previously reported, last month AbbVie filed a complaint against Boehringer Ingelheim (BI) in the U.S. District Court for the District of Delaware regarding BI’s aBLA for a biosimilar version of AbbVie’s Humira...more

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

Biosimilar Uptake and Patent Litigation in Japan

Biosimilar uptake in Japan has been a bit mixed, but according to experts the volume shares of biosimilars suggests it could be a key market in years to come. The Pharmaceuticals and Medical Devices Agency (PMDA), which is...more

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