ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,495, issued on Dec. 30, was assigned to Xencor Inc. (Pasadena, Calif.).

"LAG-3 targeted heterodimeric fusion proteins containing IL-15/IL-15RA Fc-fusion proteins and LAG-3 antigen binding domains" was invented by Matthew J. Bernett (Monrovia, Calif.), John Desjarlais (Pasadena, Calif.), Rumana Rashid (Temple City, Calif.), Rajat Varma (Monrovia, Calif.) and Christine Bonzon (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to novel targeted heterodimeric fusion proteins comprising an IL-15/IL-15RAlpha Fc-fusion protein and a LAG-3 antibody fragment-Fc fusion protein."

The patent was filed on April 28, 202...