ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,342, issued on July 15, was assigned to ECO Holding 1 GmbH (Germany).

"Electromagnetic proportional valve and system having a proportional valve" was invented by Toni Schneider (Esslingen, Germany), Daniel Reimann (Baltmannsweiler, Germany) and Jens Mohring (Nurtingen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an electromagnetic proportional valve, preferably for refrigerant, which has the following: an armature of an electromagnet which is arranged so as to be able to be moved axially between an idle position, an activation position and working positions and on which an activation element is arranged; a piston ...