ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,547, issued on May 26, was assigned to Xerox Corp. (Norwalk, Conn.).

"Graphene oxide-doped polyvinylidene fluoride particles with enhanced beta-phase crystallinity" was invented by Valerie M. Farrugia (Oakville, Canada), Robert Claridge (Kitchener, Canada) and Hojjat Seyed Jamali (Mississauga, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "High spherical particles for use in piezoelectric applications may be produced mixing a mixture comprising a graphene oxide-polyvinylidene fluoride (GO-PVDF) composite, a carrier fluid that is immiscible with the PVDF, and optionally an emulsion stabilizer at a temperature equal to or greater than a melting ...