ALEXANDRIA, Va., July 9 -- The United States Patent and Trademark Office (USPTO) published about the trademark 'KRRO-121' in its latest official gazette. The trademark application with the serial number 99637921 was filed on Feb. 6, 2026.

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Goods and Services: 5 - Oligonucleotide preparations for the treatment of genetic diseases 42 - Pharmaceutical research and development in the fields of RNA editing, drug discovery and development

International/US Class(es): 5, 42

Mark Drawing Code: 4 - STANDARD CHARACTER MARK

Current Owner(s): Korro Bio, Inc. One Kendall Square, Building 600 Suite 6-401 Cambridge MA Massachusetts 02139 3 CORPORATION

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