Reynaldo C. Barcelo

Specialty / focus areas. Reynaldo C. Barcelo is an electrical-engineering-trained patent attorney whose practice spans patent prosecution, litigation, licensing, and counseling for high-technology clients. His stated technical coverage includes computer hardware and software, communication networks, telephony, radar, signal processing, semiconductors, image/video compression, analog circuits, and electronic medical devices. His litigation work has historically cut across microprocessors, semiconductor packaging, hard disk drives, printers, video game hardware, and cluster computing. The tracked matters — Advanced Cluster Systems' cluster-computing patents asserted against Intel and AMD, and the Ironburg v. Valve Steam Controller litigation — are consistent with that profile.

Side preference. Barcelo works both sides of the docket. In the tracked cases he appears twice for plaintiff Advanced Cluster Systems (an NPE asserting cluster-computing patents in the Western District of Texas) and once on the defense/patent-owner side in the parallel IPR posture. His firm's own materials likewise describe both defending infringement charges for major operating companies (including Valve in the Ironburg and Electronic Scripting Products matters) and asserting patents (plasma displays, digital video recorders, semiconductor circuits, and TMI Products' automotive console design patent on appeal at the Federal Circuit).

Firm context. Barcelo is the founder and a partner of Barcelo, Harrison & Walker, LLP (BHW IP Law), based in Newport Beach, CA with offices in Palo Alto and Washington, DC. Earlier in his career he clerked for Judge Raymond C. Clevenger III at the U.S. Court of Appeals for the Federal Circuit (2000–2001) and later taught International Intellectual Property Transactions at Stanford Law School as an adjunct professor; I found no reliably sourced record of prior law-firm employment before founding BHW.

Notable cases, PTAB, and credentials. His most prominent matter is Ironburg Inventions Ltd. v. Valve Corp., where he represented Valve in the long-running Steam Controller dispute. A 2021 jury found willful infringement and awarded roughly $4 million, but the Federal Circuit twice reversed the district court's IPR-estoppel rulings — most recently on June 18, 2026 (No. 2024-2088) — clearing Valve to assert two invalidity grounds at trial. He has meaningful PTAB experience: he was Valve's counsel in IPR2016-00948 and currently serves as backup counsel for patent owner Advanced Cluster Systems in IPR2025-00913 through -00916 (Intel/AMD as petitioners; IPR2025-00913 was instituted in November 2025). In the parallel district court cases (ACS v. Intel, 7:24-cv-00245, and ACS v. AMD, 7:24-cv-00244, both before Judge Albright), the AMD case was dismissed and the Intel case is stayed pending ex parte reexamination. Barcelo was admitted to the California Bar in 1998 and is registered with the USPTO (Reg. No. 42,290) and admitted to the Federal Circuit; he holds a B.S.E.E. from Loyola Marymount (1989), an M.S.E.E. from USC (1991), and a J.D. from Stanford (1998), and is a licensed professional engineer in California.