ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,737, issued on June 2, was assigned to Siemens AG (Munich).
"Electromagnetic flowmeter with primary and secondary pairs of coils" was invented by Pascal Aitbraham (Haguenau, France), Qin Qin Fu (Dalian, China) and Frederic May (Eberbach-Seltz, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic flowmeter includes at least one primary pair of coils, at least one secondary pair of coils and a transmitter, wherein the at least one primary pair of coils generates at least one magnetic field within a measuring section for measuring the volumetric flow of fluid, where the at least one secondary pair of coils can be excited independentl...