ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,833, issued on Feb. 17, was assigned to Ford Global Technologies LLC (Dearborn, Mich.).
"Device for detecting a filter loading" was invented by Bernd Dienhart (Cologne, Germany), Klaus Schuermanns (Cologne, Germany), Volker Scheer (Roetgen, Germany) and Ingo Krolewski (Neuss, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A filter device of an air-conditioning system of a motor vehicle is provided. The filter device has at least one indicator device arranged in the filter device, the indicator device having at least one electrically conductive indicator material, the conductive characteristics of which vary in a manner dependent on the degre...