Intellectual Property India Publishes Patent Application for Expression Vector Systems With Two Copies Of Light Chain

MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617094497 A) filed by Amgen Inc. on August 04, 2026, for Expression Vector Systems With Two Copies Of Light Chain.

Inventors include Chen, Fuyi; Mock, Marissa; Blanco Talavan, Noelia; and Gomez, Natalia.

The application for the patent was published on October 30, 2026, under issue no. 44/2026.

Abstract: Disclosed herein are expression systems for producing multi-specific antibodies having only one Fab or having two Fabs that are identical, host cells comprising such expression systems, including but not limited to Chinese hamster ovary (CHO) cells, and methods for producing multi- specific antibodies utilizing such expression systems.

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