Ziyou Fan is a USPTO correspondent of record based in Washington, District of Columbia, listed on 2 trademark filings (2 currently live). The correspondent has worked across 2 distinct trademark owners — a broad client roster of mostly one-off filings at roughly 1.0 marks per client. In TTAB matters, Ziyou Fan is attorney of record on 1 contested oppositions and cancellations, more often as defendant (1) than plaintiff (0).
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Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
Worldle LLC cannot register WORLDLE for online game software because buyers may confuse it with WORDLE
Worldle LLC filed an application, a request to register a mark, for WORLDLE on online game software used without downloads.
The Cases Examiners Cite, Part 1: The Confusion Canon
A handful of cases quietly decide whether two brands can share the register. From du Pont to Detroit Athletic, here is the confusion canon examiners rely on - and what each case actually settled.
Board refuses request to register UNPLEX after earlier UNPLEX TECHNOLOGIES use
The Board refused the request to register UNPLEX after finding that UNPLEX TECHNOLOGIES had been used first in the United States.