ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,042, issued on July 21, was assigned to Johnson Matthey Hydrogen Technologies Ltd. (London).
"Membrane-seal assembly" was invented by Jake Coole (Swindon, Great Britain) and Angus Dickinson (Swindon, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a membrane-seal assembly which comprises a central region, an inner peripheral border region and an outer peripheral border region, wherein the inner and outer peripheral border regions comprise different seal materials."
The patent was filed on Sept. 7, 2021, under Application No. 18/003,822.
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