ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,932, issued on March 17, was assigned to enVVeno Medical Corp. (Irvine, Calif.).

"Transcatheter valve system and method for venous insufficiency" was invented by Hamed Alavi (Irvine, Calif.), Mevan L. Siriwardane (Irvine, Calif.), Tanya M. Hnatiw (Ontario, Calif.) and Nicholas K. Williams (Santa Ana, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application generally relates to an transcatheter anti-reflux venous valve endoprosthesis system, including a replacement valve, a valve support frame, crimping system, and delivery system to treat patients with chronic venous insufficiency, and method for using such a system."

The patent was ...