ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,220, issued on June 24, was assigned to GILEAD SCIENCES INC. (Foster City, Calif.) and Novartis AG (Basel, Switzerland).

"Antiviral pyrazolopiridinone compounds" was invented by Zef Konst (San Francisco), Yipin Lu (Emeryville, Calif.), Robert Joseph Moreau (Walnut Creek, Calif.), Naomi Samadara Rajapaksa (Belmont, Calif.), Galen Shearn-Nance (San Francisco), David Charles Tully (Danville, Calif.), Michael Robert Turner (Emeryville, Calif.), Joseph Michael Young (Pleasant Hill, Calif.), Qian Zhao (Louisville, Colo.), Britton K. Corkey (Foster City, Calif.) and Samuel E. Metobo (Foster City, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The in...