ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,391, issued on March 31, was assigned to Siemens Healthcare Diagnostics Inc. (Tarrytown, N.Y.).

"Sample holders, PCR station assemblies, and methods of operating PCR testing system" was invented by Daniel Chu (Hercules, Calif.), Paul Patt (Walnut Creek, Calif.), Garret Bautista (El Cerrito, Calif.) and David John Guckenberger Jr. (Oakland, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sample holder for PCR processing. The sample holder includes a body with an inlet and outlet grooves formed alongside each other, a detection recess that is connected to the inlet and outlet grooves, and a fill port interconnected to both the inlet and outle...