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Routine Notice Added Final

SAYA BIOLOGICS Trademark Opposition Extension Request

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Published April 2nd, 2026
Detected April 4th, 2026
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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)

← USPTO TTAB Proceedings

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

View original document →

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
USPTO TTAB
Published
April 2nd, 2026
Instrument
Notice
Legal weight
Binding
Stage
Final
Change scope
Minor
Document ID
TTAB99146588-20260402
Docket
99146588

Who this affects

Applies to
Legal professionals Pharmaceutical companies
Industry sector
3254.1 Biotechnology
Activity scope
Trademark Opposition
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Trademarks Litigation

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