ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,052, issued on March 24, was assigned to Kraton Corp. (The Woodlands, Texas).

"Self-sterilizing protection for surfaces" was invented by Vijay Mhetar (Houston), Richard Blackwell (Houston), Roger Tocchetto (Houston), Sharman McGilbert (Houston), Lee Barnes (Houston) and Bharadwaja Peddinti (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to laminate structures to cover or protect substrates or surfaces. The laminate structure comprises a support layer and a self-sterilizing/antimicrobial layer comprising a sulfonated polymer, capable of killing microbes within minutes and for an extended period of time. The sulfonated ...