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5 Key Takeaways | Rolling with the Legal Punches: Resetting Patent Strategy to Address Changes in the Law
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Patent Litigation: How Low Can You Go?
On July 14, 2025, Fresenius Kabi filed IPR2025-01268 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”) and IPR2025-01269 against U.S. Patent No. 10,828,345 (“the ’345 patent”), both relating to EYLEA®...more
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
On June 2, 2025, the Patent Trial and Appeal Board (“Board”) issued decisions denying institution of Samsung Bioepis’s IPR2025-00176 and Formycon’s IPR2025-00233 against claims 1–12, 14–17, 19, 20, 22–36, 39–42, 44, 45, and...more
On February 12, 2024, Chugai, Genentech, and Hoffmann-La Roche (Roche) filed a motion to voluntarily dismiss CAFC Appeals 24-1111 and 24-1115, appealing the Final Written Decisions (FWDs) in IPR2022-00578 and IPR2022-00579,...more
The new year has brought a wave of activity for EYLEA® (aflibercept) biosimilars. Following up on our previous report (EYLEA® (aflibercept) and Soliris® (eculizumab) IPR and BPCIA Litigation Updates, December 31, 2023), in...more
As we settle into 2024, we reflect on the significant legal developments of 2023 that hold potential impact on the biologics and biosimilars market. The following is a recap of some of the top five legal decisions and...more
In the last month, there has been a flurry of activity at the PTAB related to challenges from biosimilar manufacturers related to ustekinumab, aflibercept, and eculizumab patents....more
On August 18, Samsung Bioepis Co., Ltd. (“Samsung Bioepis”), filed a petition for Inter Partes Review, IPR2023-01312, challenging the validity of claims 1-18 of U.S. Patent No. 10,464,992, assigned to Regeneron...more
We previously reported on the opening post-trial briefs in Regeneron’s BPCIA case against Mylan and Biocon (who was added as a defendant after the original defendant, Mylan, transferred its rights to the aflibercept...more
Biologics have become the fastest-growing class of therapeutic compounds. They have provided innovative treatment alternatives for people who suffer from some of the most serious medical conditions known to man. The...more
2022 heralded the next chapter for biosimilars in the United States, including U.S. Food and Drug Administration approval of biosimilars in new therapeutic areas, additional interchangeable designations, and litigation...more
Welcome to our quarterly update relating to biologics and biosimilars, including post-grant and patent litigation challenges to blockbuster biologics. Since the enactment of the Biologics Price Competition and Innovation...more
On November 9, 2022, the PTAB issued final written decisions in IPR2021-00880 and IPR2021-00881, filed by Mylan on two Regeneron patents related to aflibercept—U.S. Patent Nos. 9,254,338 and 9,669,069. The PTAB ruled in...more
This June, join the “who’s who” of the biosimilars and innovator biologics industries as they gather in Boston for ACI’s 13th Annual Summit on Biosimilars & Innovator Biologics....more
On April 14, 2022, the U.S. Court of Appeals for the Federal Circuit reversed the PTAB’s determination in IPR2016-01542 that claims of Amgen’s U.S. Patent No. 8,952,138 are obvious. The ’138 patent claims are directed to...more
2021 saw several important milestones in the biosimilars space, including the much anticipated first interchangeable designations by FDA and the approval of the first ophthalmology biosimilar. The biosimilar market also...more
After reflecting upon the events of the past twelve months, Patent Docs presents its 15th annual list of top patent stories. For 2021, we identified nine stories that were covered on Patent Docs last year that we believe had...more
Introduction - The biosimilar pathway was designed to increase competition for biologics and reduce healthcare costs. Yet 2020 saw a slowdown in biosimilar activity with the lowest number of annual biosimilar approvals since...more
This year, the BPCIA turns 10! As we prepare to enter the next decade of this revolutionary law, we cordially invite you to join us for ACI’s 11th Annual Biosimilars & Innovator Biologics Summit, in a fully virtual,...more
Here are our picks of some legal developments to keep an eye out for in the new year: Federal Circuit Decisions on Bevacizumab and Trastuzumab Preliminary Injunctions: Appeals are pending on the District of Delaware’s...more
Here are our picks of some legal developments to keep an eye out for in the new year: 1. Etanercept biosimilar trial decision – This past September, in the Immunex v. Sandoz BPCIA patent litigation concerning Sandoz’s...more
Below is a summary of recent updates in biosimilar-related proceedings before the Patent Trial and Appeal Board of the United States Patent and Trademark Office...more
Below is an update on recent developments in several litigations involving biosimilar products. Amgen v. Sandoz (filgrastim, pegfilgrastim): As we previously reported, the district court granted summary judgment of...more
As we noted in this article on PTAB Trial Insights, Senator Hatch (R-UT) has introduced the Hatch-Waxman Integrity Act, which is intended to restore the brand-generic balance many say has been skewed by Inter Partes Review...more
2017 was an eventful year for biosimilars in the U.S. As the number of biosimilar filings increased, important legal and regulatory decisions changed the strategic landscape of the biosimilars market for both innovators and...more