ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,426,188, issued on Sept. 23, was assigned to Lenze Swiss AG (Romanshorn, Switzerland).
"Frequency converter class" was invented by Andreas Burgermeister (Mauren, Switzerland), Beat Heim (Wilen, Switzerland) and Dieter Tanner (Schocherswil, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A frequency converter class contains various types of frequency converters. A first type of frequency converters of the frequency converter class consists of: power electronics, a carrier element, and a housing element of a first housing element type that, in connection with the carrier element, forms a housing for the power electronics, and a second type of ...