ALEXANDRIA, Va., May 12 -- United States Patent no. 12,622,556, issued on May 12, was assigned to CARL FREUDENBERG KG (Weinheim, Germany).
"Method for identifying the substrate" was invented by Denys Maiier (Rimbach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for identifying a substrate on which an apparatus is moveable includes: providing the apparatus, the apparatus including a main body, a drive unit, a control unit and a sensor assembly; forming a vibration system from the apparatus and the substrate, the vibration system generating vibrations, the vibrations generating a vibration pattern characteristic of a particular substrate, the vibration pattern varying as a function of a natu...