SAYA BIOLOGICS Trademark Opposition Extension Request
Summary
Sana Biotechnology, Inc. filed a first 30-day extension request with the USPTO Trademark Trial and Appeal Board to oppose the SAYA BIOLOGICS trademark filed by Elysian Bio LLC. The extension request was filed on April 2, 2026 under TTAB proceeding number 99146588.
What changed
Sana Biotechnology, Inc. submitted a first 30-day extension request to oppose Elysian Bio LLC's SAYA BIOLOGICS trademark before the TTAB. The proceeding is at the extension stage, meaning Sana has not yet filed a formal notice of opposition but is requesting additional time to do so.\n\nLegal counsel for interested parties should monitor this proceeding for further filings. If Sana Biotechnology ultimately files a notice of opposition, Elysian Bio LLC will need to respond through the TTAB's standard inter partes procedures. There is no immediate compliance action required for unrelated entities.
Source document (simplified)
Extension: SAYA BIOLOGICS
Extension TTAB99146588-20260402 Kind: EXT Apr 02, 2026
Abstract
FIRST 30-DAY REQUEST TO EXT TIME TO OPPOSE
Plaintiff: Sana Biotechnology, Inc.
Defendant: Elysian Bio LLC
Mark at issue: SAYA BIOLOGICS
Filing Date
2026-04-02
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