William Yau

Summary — William Yau (patent litigation practice)

William Yau is a litigation associate whose practice, as described by his firm profile, centers on intellectual property and technology disputes, including patent litigation, with experience in cases involving cybersecurity, artificial intelligence, computer software, and biotechnology. His one tracked appearance is in Headwater Research LLC v. Apple Inc. (W.D. Tex., No. 7:25-cv-00377, Judge Albright), a patent case filed August 2025 asserting three patents directed to wireless network offloading technology. The tracked data reflects a defendant-side, pro hac vice appearance in that matter — consistent with counsel of record DLA Piper and the Dacus Firm representing Apple against NPE plaintiff Headwater Research.

Firm context and side preference. The tracked profile attributes the appearance to DLA Piper, and Law.com Radar confirms DLA Piper is Apple's counsel in the case. Notably, however, accessible public sources (Desmarais LLP's website and Law360's case pages) identify a William Yau as an IP litigation associate at Desmarais LLP in New York in connection with the same Headwater v. Apple matter. If the tracked DLA Piper affiliation is current, it is not yet reflected in public profiles; the sources otherwise locate this attorney at Desmarais LLP, a litigation boutique known for patent work. Based on the single tracked matter, the practice appears defendant-side, representing an operating company against a patent assertion entity — but the record is too thin to infer a broader side preference.

Notable matters, PTAB, and credentials. The only identified matter is the pending Headwater Research v. Apple suit; no verdicts, settlements, or Federal Circuit appeals tied to this attorney were found in public sources, and there is no evidence of IPR/PGR appearances. Reliable public sources for the Desmarais-identified William Yau indicate a J.D. from University of Michigan Law School (2019), a B.S. in biochemistry and psychology from the University of Michigan (2015), and admission to the New York bar (2020) plus the S.D.N.Y. and D. Colo. district courts. Because multiple attorneys share this name, firm affiliation should be confirmed against the underlying docket before any filing relies on it.