Yi Yu

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Yi Yu, Ph.D. — Patent Litigation Practice Summary

Specialty / focus areas. Yi Yu is a Ph.D. electrical engineer whose practice spans all aspects of patent law — litigation, post-grant proceedings, prosecution, portfolio development, and counseling. Finnegan's own practice description and case experience center on electrical and computer technologies: telecommunications (4G LTE/LTE-Advanced and 5G), Wi-Fi/802.11, computer networks, image and video processing, software and business methods, medical devices, and unmanned aerial systems. A substantial share of her work involves standard-essential patents (SEPs) and FRAND issues; she has co-authored Finnegan/Reuters commentary on defending SEP litigation (with Frank DeCosta and Jeff Berkowitz, Oct. 2024). She also maintains an active prosecution docket, with USPTO filings concentrated in consumer electronics, mobile software, and automotive technologies.

Side preference. Her six tracked appearances are evenly split (3 plaintiff-side, 3 defendant-side), and she is listed as lead counsel in five of the six. The public record is consistent with genuinely two-sided work rather than a single orientation. On the plaintiff side she represented Sol IP in an SEP suit against Qualcomm and has handled offensive ITC work; on the defense side she has defended automotive OEMs and acted as petitioner for large technology companies. She is a registered practitioner (USPTO Reg. No. 69,397) with district court, ITC, and PTAB experience, not an in-house attorney.

Firm context. She is a partner at Finnegan, Henderson, Farabow, Garrett & Dunner LLP (the two firm-name variants in the case list are the same firm), based in its Reston, Virginia office. No prior law-firm employment is reflected in the sources; before law school she was a technical staff member at BlackBerry Limited, doing 4G LTE/LTE-Advanced research and standards development, and she is a named inventor on more than one hundred U.S. patents.

Notable cases and outcomes. The two most prominent publicly attributed matters are: (1) Sol IP, LLC v. Qualcomm Inc., 6:21-cv-00270 (W.D. Tex., Judge Albright) — represented plaintiff Sol IP in an SEP suit concerning 5G, 4G LTE, and Wi-Fi semiconductors; the case settled. (2) Google LLC v. Ikorongo Technology LLC, IPR2021-00204/-00205 (PTAB) — represented petitioner Google; after the Board initially denied institution on Fintiv grounds, Finnegan's rehearing request led to institution and the challenged claims were ultimately held unpatentable and cancelled. Her Finnegan bio also credits defense work for Volkswagen, Audi, Bentley, and Lamborghini in the Arigna power-electronics/ semiconductor campaign (ITC 337-TA-1267; E.D. Tex.; related IPRs IPR2021-01321 and -01531), where IPRs were instituted, and an offensive LG Electronics LTE matter (ITC 337-TA-1051) that ended in settlement and license. Note: four of the six tracked appearances are labeled only as "Untitled case," so those matters cannot be described on the present record; the outcomes above are drawn from her firm bio and PTAB/ITC filings and should be independently verified before use.

PTAB / IPR experience. Yes — she appears regularly in IPR/PGR proceedings, including as counsel in the Volkswagen–Arigna IPRs and the Google–Ikorongo IPRs, where she presented oral argument under the PTAB's LEAP program.

Bar / education. Admitted in Virginia and before the USPTO (and the U.S. Court of Appeals for Veterans Claims); J.D., Georgetown University Law Center (cum laude, 2016); Ph.D., Electrical and Computer Engineering, Texas A&M University (2006); M.Sc. and B.Eng., Southeast University, Nanjing. One caution on name disambiguation: her name is close to other Finnegan practitioners of similar spelling (e.g., a pharma-focused partner and a prosecution associate), and to unrelated "Yi Yu" attorneys; the credentials above tie to USPTO Reg. No. 69,397.