US Patent Issued to The Penn State Research Foundation on Sept. 23 for "Ostomy bag with a slippery surface" (Pennsylvania Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,997, issued on Sept. 23, was assigned to The Penn State Research Foundation (University Park, Panama).

"Ostomy bag with a slippery surface" was invented by Tak-Sing Wong (University Park, Pa.), Jing Wang (University Park, Pa.) and Birgitt Boschitsch (University Park, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ostomy bag having a polymeric surface is prepared by forming a polyphenol layer on the surface, forming a silanization layer on the polyphenol layer and forming a lubricant layer entrenched over the silanization layer. The silanization layer is polymerized from a solution including: (i) a polymerizable silane or siloxane or combinat...