ALEXANDRIA, Va., June 6 -- United States Patent no. 12,279,956, issued on April 22, was assigned to Cedars-Sinai Medical Center (Los Angeles).

"Method and apparatus for percutaneous delivery and deployment of a cardiac valve prosthesis" was invented by Robert James Siegel (Beverly Hills, Calif.) and Lawrence E. Ong (Beverly Hills, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Catheter apparatuses and methods are provided for repairing heart valves, particularly mitral valves. The method includes providing a catheter having an elongate, flexible body, with a proximal end and a distal end. The distal end can be transluminally advanced from the left atrium through the mitral valve. A distal anchor zone ...