ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,055, issued on Jan. 27, was assigned to Smith & Nephew PLC (Watford, Great Britain) and University of Sheffield (Sheffield, Great Britain).
"Polymer materials" was invented by John Kenneth Hicks (York, Great Britain), Richard Hoskins (Bradford, Great Britain), Stephen Rimmer (Bradford, Great Britain) and Dorothy McCulloch (York, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Polyurethane material for indicating pH at a locus, preferably as indication of presence of microbes, comprising a polyurethane network having immobilised therein one or more hydrophilic copolymers, the or each said copolymer comprising: hydrophilic monomer; and in...