William Frank Lee

William F. ("Bill") Lee — WilmerHale (Boston)

Identification note: The profile name "William Frank Lee" matches only one WilmerHale IP practitioner of that name — William F. ("Bill") Lee, the Boston-based IP trial and appellate partner. Public sources (WilmerHale, Chambers, Legal 500, IAM Patent 1000) do not print a middle name beyond the "F," so the middle-name match is inferred, not confirmed. No other WilmerHale attorney named William Lee with a patent litigation practice was found.

Specialty / focus. Lee is a generalist high-stakes patent trial and appellate lawyer rather than a single-technology specialist. Reported subject-matter experience spans mobile devices/smartphones (Apple v. Samsung), microprocessors and semiconductors (Intel v. VLSI, WARF v. Apple), cellular and secure internet communications, remote data storage, video compression, laser optics, high-speed chromatography, and life sciences (pharmaceuticals, medical devices, genetically engineered products). The tracked matter — Centripetal Networks v. Palo Alto Networks — is network-security software, involving the '856 patent on "rule-based network-threat detection for encrypted communications." His practice also covers ITC actions and the intersection of antitrust and IP.

Side preference and firm context. The tracked record shows one appearance, entirely on the defense side (0 plaintiff / 1 defendant), and that is consistent with his career profile: he is best known as defense counsel for operating technology companies (Apple, Intel, Cisco, EMC, Ford, Illumina, Roche/Ariosa). He has acted for patent owners as well (e.g., Apple as plaintiff in the Samsung litigations; EMC as plaintiff against HP). Firm history: joined Boston's Hale and Dorr in 1976, became senior partner in 1984 and managing partner in 2000, and served as co-managing partner of the merged WilmerHale from 2004 to 2011; he has spent his entire patent litigation career at that firm line.

Notable cases and outcomes. Reported highlights include lead trial counsel for Apple in the smartphone litigations (2012 jury verdict of roughly $1.04 billion against Samsung, substantially affirmed on appeal); EMC v. HP (remote data storage patents, settled on appeal for about $325 million); a roughly $2.15 billion settlement for Pfizer and Takeda in a pharmaceutical patent dispute; defense of Ford in a $275 million patent suit; and the Intel v. VLSI appeal (Fed. Cir. 2024) reversing a $2.18 billion verdict and remanding for retrial. In the tracked Centripetal/Palo Alto litigation, the district court jury awarded Centripetal $151.5 million in January 2024; the court later granted JMOL of non-infringement on the '437 patent and reduced the award to about $113.6 million (Oct. 2024), and a related PTAB appeal was remanded by the Federal Circuit in October 2025.

Attribution caveat: In the reported Centripetal v. Palo Alto Networks docket, Palo Alto's publicly listed counsel are Ropes & Gray, Norton Rose Fulbright and McGuireWoods; WilmerHale appears for Cisco Systems, which was a joined party/appellee in the parallel IPR appeal (Fed. Cir. No. 23-2027, captioned Centripetal Networks, LLC v. Palo Alto Networks, Inc.). The tracked "defendant / WilmerHale" entry therefore likely reflects an aligned-party appearance in that dispute rather than direct representation of Palo Alto Networks, and I could not verify a specific appearance by William F. Lee in that docket.

PTAB / IPR. WilmerHale's IPR work in this space is documented (the Intel v. Qualcomm IPRs, where the Federal Circuit affirmed PTAB invalidation of 31 claims in 2024), and Lee's firm bio lists Post-Grant Proceedings as a practice area. However, I found no source confirming that Lee personally appears as lead counsel in IPR/PGR proceedings on a regular basis; his public profile skews to district court trials and Federal Circuit appeals.

Bar / education. J.D., magna cum laude, Cornell Law School (1976); M.B.A., Cornell (1976); A.B., magna cum laude, Harvard (1972). Specific bar admissions were not independently verified beyond his Massachusetts base; he is a Fellow of the American College of Trial Lawyers and has served on the Federal Circuit's advisory committee.