ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,748,109, issued on Sept. 29, was assigned to BioMEMS Diagnostics Inc. (Bloomfield Hills, Mich.).

"Microwell microelectrode filtration sensor" was invented by Michael J. Pugia (Pagosa Springs, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microwell microelectrode filtration sensor created by using an inert planar surface, which can be a metal pattern dry etched, to generate a filtration membrane with pores, generating a reactive metal surface layer as a working electrode. The electrode is within an area covering a filtration membrane, and makes one or more microwells added by a first layer of inert plastic of an effective working distance heigh...