US Patent Issued to University of Pittsburgh-Of the Commonwealth System of Higher Education on July 28 for "Zwitterionic polysiloxane for biomedical devices" (Pennsylvania Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,393, issued on July 28, was assigned to University of Pittsburgh-Of the Commonwealth System of Higher Education (Pittsburgh).

"Zwitterionic polysiloxane for biomedical devices" was invented by William R. Wagner (Gibsonia, Pa.), Sang Ho Ye (Cheswick, Pa.), Seungil Kim (Pittsburgh) and Sung Kwon Cho (Pittsburgh).

According to the abstract* released by the U.S. Patent & Trademark Office: "A zwitterionic polysiloxane polymer (e.g., a polyurethane elastomer) composition having poly(dialkylsiloxane) blocks and a zwitterionic moiety is prepared by the copolymerization of a poly(dialkylsiloxane) diol, a diisocyanate, a tertiary amine alkyl diol, and a poly(dialkylsiloxane) diamine to for...