US Patent Issued to University of Virginia Patent Foundation on March 31 for "Occlusive implant compositions" (Virginia Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,182, issued on March 31, was assigned to University of Virginia Patent Foundation (Charlottesville, Va.).

"Occlusive implant compositions" was invented by John C. Herr (Charlottesville, Va.), Alexander L. Klibanov (Charlottesville, Va.) and Kevin Simon Eisenfrats (Charlottesville, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are methods of delivering an agent to the lumen of the vas deferens under guidance of ultrasound imaging. The methods include vas-occlusive contraception in which the vas deferens is non-surgically isolated and an occlusive substance is percutaneously administered into the lumen of the vas deferens under ultraso...