ALEXANDRIA, Va., June 18 -- United States Patent no. 12,324,436, issued on June 10, was assigned to Performance Chemicals LLC (Franklin, N.H.).

"Protective antimicrobial system" was invented by Michael Currier (Gilford, N.H.), Matthew Currier (Gilford, N.H.), Sarah A. Currier (Sanbornton, N.H.) and Robert Currier (Canterbury, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The system and method for providing antimicrobial and/or antiviral characteristics to substrates via an additive process for providing safe handling and reduction of cross contaminations from person to person from handling, shipping, storage and use of papers, boxes, liners, hospital barriers, respirator filters and liners, hospital cu...