Thomas Rozylowicz

Thomas (Tom) Rozylowicz — Principal, Fish & Richardson (Washington, D.C.)

Focus and technology areas. Rozylowicz's practice centers on patent prosecution, post-grant proceedings under the America Invents Act, and IP licensing, with client work spanning software, electronics, communications, semiconductors, and medical devices. His technical background is electrical engineering: firm materials list expertise in machine learning, database/business-intelligence systems, encryption and network protocols, semiconductor manufacturing, transistor design, power management, antenna design, and medical-device technologies such as endoscopic imaging, therapeutic lasers, and electrical stimulation. That profile matches his tracked matters, which involve semiconductor fabrication patents and aerial-imagery/geospatial software rather than pharma or life sciences.

Side preference. He works both sides rather than anchoring to one posture. His five tracked appearances split roughly evenly (three plaintiff-side, two defendant-side), and his firm biography states that he represents both patent owners and petitioners at the PTAB. Consistent with that, his tracked matters include acting for TSMC as an IPR petitioner challenging a non-practicing entity's patents, and acting for Nearmap both as an IPR petitioner against EagleView's patents and on the defense of the parallel district court action.

Firm context. All tracked appearances are at Fish & Richardson, where he is a principal in the D.C. office and has built his career; no other firms appear in the tracked record, and his pre-law background was as an Air Force captain and an NSA electrical engineer/law clerk rather than at another firm.

Notable matters and outcomes. The most prominent tracked matter is Taiwan Semiconductor Manufacturing Company v. Marlin Semiconductor Ltd, part of the multiform dispute in which Marlin (an IPValue/Vector Capital affiliate) asserted patents it acquired from UMC against TSMC through ITC Investigation No. 337-TA-1443 and E.D. Tex. litigation, with TSMC filing IPRs against the asserted patents (including the '847, '194, '384, and '735 patents). He is also on the Fish team for the Nearmap US v. Eagle View Technologies litigation and IPR set concerning aerial roof-estimation patents; on Feb. 3, 2026, the Federal Circuit affirmed PTAB obviousness findings against EagleView's U.S. Patents Nos. 8,670,961 and 8,078,436 in appeals from those IPRs, and the Utah district court case was stayed in August 2025 before the companies announced a confidential settlement in May 2026. Public records show him in back-up/additional counsel roles on the Nearmap matters, so the headline wins should not be attributed to him personally.

PTAB / IPR experience. This is a core part of his practice: Fish states he has managed more than 90 AIA post-grant matters (IPR, PGR, and historically CBM), and his docket reflects petitioner- and patent-owner-side PTAB work. He is active in the PTAB Bar Association — board member, former conference chair, and most recently elected Vice President of the Board (announced March 2026) — and was named a Top PTAB Practitioner by Managing IP in 2018.

Bar and education. J.D., George Washington University Law School (2003); M.S., Electrical Engineering, George Mason University (1999); B.S., Electrical Engineering, U.S. Air Force Academy (1994). Registered USPTO practitioner (Reg. No. 50,620, 2002); admitted in Maryland (2003) and D.C. (2024).