US Patent Issued to ASHER BIOTHERAPEUTICS on March 11 for "IL-21 polypeptides and targeted constructs" (California Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,072, issued on March 11, was assigned to ASHER BIOTHERAPEUTICS INC. (South San Francisco, Calif.).

"IL-21 polypeptides and targeted constructs" was invented by Yik Andy Yeung (South San Francisco, Calif.), Renee L. Greer (Pacifica, Calif.), Henry C. Nguyen (San Francisco), David Liu (Pacifica, Calif.), Byong Kang (San Francisco) and Ivana Djuretic (Pacifica, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides methods and compositions comprising IL-21 polypeptides, targeted cytokine construct that selectively activates target immune cells (e.g., CD8+ T cells) over other immune cell types. The cytokine of the present...