US Patent Issued to Solventum Intellectual Properties on Feb. 24 for "Immobilized pH indicator for biological indicator growth indication" (Wisconsin Inventor)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,448, issued on Feb. 24, was assigned to Solventum Intellectual Properties Co. (Maplewood, Minn.).

"Immobilized pH indicator for biological indicator growth indication" was invented by Jeffrey M. Flynn (Osceola, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-contained biological indicator is provided. The biological indicator includes a housing having at least one liquid-impermeable wall that forms an opening into a compartment. Disposed in the housing are a plurality of test microorganisms; an aqueous liquid medium disposed in an openable container; and a pH indicator dye substrate having a pH indicator dye bound thereto. The pH indicato...