ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,812, issued on May 5, was assigned to Agilent Technologies Inc. (Santa Clara, Calif.).

"Fluid mixing by fluid supply lines with line-specific fluid pumps for liquid chromatography" was invented by Clemens Plachetka (Malsch, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid chromatography fluid supply apparatus, for providing a mixture of a plurality of different fluids as a mobile phase for a liquid chromatography sample separation apparatus, includes a plurality of supply lines, a plurality of fluid pumps, and a combining point. Each of the supply lines is fluidically coupled to a respective one of a plurality of fluid component sources...