Trademarks Expert Witnesses: 17

Bruce Weiner is a technology, product development, and software engineering expert witness with 37 years of experience applying industry-standard design, testing, and post-deployment methods to determine whether technology products and features achieve their stated objectives.

Through Weiner.net LLC, he has been retained in 25+ matters since 2011 across U.S. District Courts, PTAB, state courts, AAA and NAA arbitrations, and an NYC administrative proceeding — retained by both plaintiff and defense counsel. 9+ depositions, and he has appeared for trial and hearing testimony. Expert declarations cited by name in Federal Circuit opinion, 986 F.3d 1367.

Representative matters span gig-economy platform governance, airline and loyalty-program technology, e-commerce and affiliate systems, banking software, AI-weighted model evaluation, SDLC/PDLC governance, and billing substantiation. Opinions anchored to ISO/IEC 12207, ISO/IEC 25010, IEEE 730, and ISO/IEC 42001.

Beyond litigation, he is an at-the-table technical advisor in labor negotiations, including CBA development under NMB mediation.

Since 2012, progressive technology leadership roles at a large financial services institution, most recently Vice President, Chief Product Owner. Princeton BSE, Magna Cum Laude. ACM and IEEE member. A-CSPO, CAL 1. Federal Top Secret Security Clearance — DCSA Tier 5 Investigation (Active).

Jack Holowczak is a Luxury Goods Authentication and Valuation Expert and USPAP-compliant Personal Property Appraiser. As Founding Director of PROVENANCE, he has examined 2,000,000+ items across 50+ luxury houses since 2016 — Hermès, Chanel, Louis Vuitton, Goyard, Chrome Hearts — with documented counterfeit and superfake detection protocols.

He serves counsel in counterfeit, trademark, insurance, estate, customs, and criminal matters in all U.S. and Canadian jurisdictions. Fees never contingent.