Sydney R. Jensen
Sydney R. Jensen is a USPTO correspondent of record based in San Mateo, CALIFORNIA, listed on 152 trademark filings (141 currently live). The correspondent has worked across 62 distinct trademark owners — a broad client roster of mostly one-off filings at roughly 2.5 marks per client. In TTAB matters, 24 proceedings appear on the record, appearing as plaintiff and defendant in equal measure (12 each). The correspondent is associated with Carr & Ferrell LLP.
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Explore the Trademark Intelligence Library
Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
TTAB Q4 2025: Opposition Plaintiffs Won Roughly Five of Every Eight Decisions
When the Trademark Trial and Appeal Board cleared its opposition docket in Q4 2025, the people who filed the oppositions mostly walked away winners.
Maradona's Heirs Win at the TTAB as Q1 Filings Slip 7.4%
On the last day of the quarter, the Trademark Trial and Appeal Board sustained an opposition brought by the heirs of Diego Armando Maradona against Sattvica S.A.
Challengers Won Most TTAB Oppositions in Q3 2025 — and Big Tech Filed a Late-September Wall of Them
When the Trademark Trial and Appeal Board decided an opposition on the merits this quarter, the party bringing the challenge usually won.