ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,421, issued on Dec. 23, was assigned to Syntis Bio Inc. (Boston).

"Engineered leucine decarboxylases" was invented by Jonathan Benjamin Asfaha (Oakland, Calif.), Subhamoy Das (Menlo Park, Calif.), Faye Loan Du (San Jose, Calif.), Stephan Jenne (Foster City, Calif.), Nikki D. Kruse (San Carlos, Calif.), Joyce Liu (Fremont, Calif.), Kerryn McCluskie (Pacifica, Calif.), Roasa Mehmood (Fremont, Calif.), Adam P. Silverman (San Carlos, Calif.) and Kristen Jean Vallieu (Las Vegas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides engineered leucine decarboxylase (LDC) polypeptides and compositions thereof, as well as polynucleoti...