ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,291, issued on July 29, was assigned to Becton Dickinson and Co. (Franklin Lakes, N.J.).
"Polyurethane based medical articles" was invented by He Bai (Sandy, Utah), Hua Zhang (South Jordan, Utah), Marc W. Weimer (South Jordan, Utah) and James Freasier (Salt Lake City).
According to the abstract* released by the U.S. Patent & Trademark Office: "Medical articles formed from a polyurethane-based resin including an ionically-charged modifier provide enhanced properties. The polyurethane-based resin is a reaction product of ingredients comprising: a diisocyanate; a diol chain extender; a polyglycol; and an anionic modifier incorporated into a backbone, as a side chain, or both of the ...