ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,651, issued on June 2, was assigned to Twelve Inc. (Redwood City, Calif.).

"Prosthetic heart valve devices, prosthetic mitral valves and associated systems and methods" was invented by John Morriss (San Francisco), Matt McLean (San Francisco), Maureen Bensing (Sunnyvale, Calif.), Jean-Pierre Dueri (Los Gatos, Calif.), Hanson Gifford III (Woodside, Calif.), Katie Miyashiro (Miyashiro, Calif.), David Jerry Scott (Redwood City, Calif.), David Trask (Redwood City, Calif.) and Kirsten Valley (Los Altos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Prosthetic heart valve devices for percutaneous replacement of native heart valves and associated sy...