MUMBAI, India, Aug. 31 -- Intellectual Property India has published a patent application (202527111560 A) filed by Bluejay Therapeutics, Inc. on November 14, 2025, for Fusion Proteins Containing Il21 Muteins For Treating Cancer And Viral Diseases.
Inventors include Javanbakht, Hassan; Ramos, Hilario J.; Liu, Yue; Hoag, Matthew; and Wang, Bo.
The application for the patent was published on August 28, 2026, under issue no. 35/2026.
Abstract: A fusion protein includes an anti-PD1 antibody portion having a C-terminus, and an IL21 mutein conjugated with the anti-PD1 antibody portion with its C-terminus, wherein the IL21 mutein contains at least one of the two mutations relative to the wild-type IL21: (1) one of K72Y substitution, K72M substit...