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TTABVUE. Trademark Trial and Appeal Board Inquiry System
v2.8.0
Summary
Query:
Party Name contains all words: BYZANTINE CHAIN LTD
Number of results:
2
Proceeding
Filing Date
Defendant(s),
Property(ies)
Plaintiff(s),
Property(ies)
91305335
02/18/2026
BYZANTINE CHAIN LTD
Mark:
FURGPT
S#:
99267755
OpenAI OpCo, LLC
Mark:
CHATGPT
S#:
97733261
Mark:
CHATGPT
S#:
97928136
Mark:
GPT
S#:
97733259
Mark:
GPT-3
S#:
90092493
R#:
6294671
Mark:
GPT-4
S#:
97836275
R#:
7232349
Mark:
GPT-5
S#:
98089548
99267755
01/13/2026
BYZANTINE CHAIN LTD
Mark:
FURGPT
S#:
99267755
OpenAI OpCo, LLC
Results as of 03/14/2026 12:39 PM
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