ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,597, issued on May 26, was assigned to GEORG FISCHER ROHRLEITUNGSSYSTEME AG (Schaffhausen, Switzerland).

"Wireless power transfer" was invented by Elmar Hufschmid (Albbruck, Germany), Yuri Selvaggi (Zurich), Reto Signer (Wetzikon, Switzerland), Andy Bleuler (Zufikon, Switzerland), Thomas Hartmann (Ravensburg, Germany) and Calin Ciobanu (Brea, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for optimized wireless power transfer between two coils by transferring power of a coil of a primary side to a coil on a secondary side, the method including determining a common resonant frequency of the primary and secondary sides by measuring a po...