Wesley Derryberry

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Wesley ("Wes") E. Derryberry — Patent Litigation Practice Summary

Focus areas. Derryberry is a patent litigator, prosecutor, and PTAB practitioner whose practice spans a broad technology set rather than a single vertical. Wilson Sonsini's own description of his work covers software, networking, encryption, electronic devices, financial systems, medical devices, and the mechanical arts, and his firm bio groups him under intellectual property, life sciences litigation, patent litigation, and post-grant review. That breadth is borne out by his docket: cloud-security software (Wiz/Orca), wireless standards and CDMA/3GPP technology (Lenovo/InterDigital), and drug-delivery device and pharmaceutical patents (Mylan/Sanofi insulin glargine). Before law school he worked as a software engineer, and his USPTO prosecution filings cluster around life-sciences and diagnostics companies (10x Genomics, Guardant Health, Align Technology, Seer, Avidity Biosciences).

Side preference. The authoritative case list shows a single tracked appearance, on the defendant side, and the verifiable record is consistent with a defense- and petitioner-heavy practice. He has represented Mylan as petitioner in the Sanofi insulin glargine IPRs and on the related Federal Circuit appeals, Wiz as both defendant in Orca Security v. Wiz (D. Del.) and petitioner in the corresponding IPRs, and Lenovo/Motorola on the petitioner side in the InterDigital wireless disputes. He has also appeared for patent owners — for example, as counsel for Wiz when Orca petitioned for IPR of Wiz's newer cloud-security patents (IPR2025-01083 et seq.) — so the practice is not strictly one-sided, but it is anchored in defending operating companies and challenging asserted claims rather than in asserting patents for NPEs/PAEs.

Firm context. He is Senior Counsel in the Washington, D.C. office of Wilson Sonsini Goodrich & Rosati, where his entire tracked practice has been based. No prior firm appears in the sources reviewed; public records show him with Wilson Sonsini since at least 2018–2019.

Notable matters. The most prominent verifiable result is the Sanofi insulin glargine litigation, where he was part of the Wilson Sonsini team (with Torczon, Steiner, Thomas, and Johnson) that secured a December 29, 2021 Federal Circuit decision affirming eight PTAB decisions holding Sanofi device-patent claims unpatentable — a win for Mylan/Viatris ahead of the first interchangeable insulin glargine biosimilar launch. He also appeared on the briefs in InterDigital Technology Corp. v. Lenovo Holding Co., No. 2022-1592 (Fed. Cir.), the appeal from IPR2020-01413, in which the Federal Circuit affirmed the PTAB's obviousness holding invalidating all challenged claims of U.S. Patent No. 8,199,726; there he represented appellant InterDigital (i.e., the patent owner's side), and the affirmance went against his client. On the Wiz/Orca cloud-security dispute, he is counsel in a multi-patent IPR campaign running from 2024 into 2025, including a consolidated oral hearing in October 2025.

PTAB / IPR experience. This is a core part of his practice, not an occasional one. He appears repeatedly in IPR proceedings — the Mylan v. Sanofi device-patent IPRs, the Wiz v. Orca petitions and the later Orca v. Wiz petitions, and the InterDigital/Lenovo IPRs — typically as back-up counsel behind lead counsel Matthew Argenti or Richard Torczon. USPTO records list him as a registered patent practitioner (Reg. No. 71,594).

Bar and education. J.D., University of Virginia School of Law (2011); B.A. in Computer Science, Duke University (2004), cum laude. Admitted in the District of Columbia and before the U.S. Patent and Trademark Office (also holds an inactive Texas bar license). Note: the structured case list contains only one untitled tracked entry, so the specific matters above are drawn from firm, court, and PTAB records rather than from the tracked list itself.