ALEXANDRIA, Va., June 17 -- United States Patent no. 12,310,830, issued on May 27, was assigned to W. L. Gore & Associates Inc. (Newark, Del.) and ViaCyte Inc. (San Diego).

"Biocompatible membrane composite" was invented by Timothy M. Bruhn (Newark, Del.), Kevin D'Amour (San Diego), Christopher Folk (San Diego), Craig McGreevy (San Diego), Laura Martinson (San Diego), Scott A. Ritrovato (Newark, Del.), Greg Rusch (Newark, Del.), Michael Scott (San Diego), Lauren R. Zambotti (Newark, Del.), Qiang (John) Zhang (San Diego) and Joseph Kakkassery (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A biocompatible membrane composite including a cell impermeable layer and a mitigation layer is provided. The c...