US Patent Issued to Wisconsin Alumni Research Foundation on July 8 for "Long distance wireless radio tag with RF energy harvesting" (Wisconsin, Illinois Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,353,939, issued on July 8, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Long distance wireless radio tag with RF energy harvesting" was invented by Bhuvana Krishnaswamy (Madison, Wis.), Yaman Sangar (Madison, Wis.) and Kai Pederson (Palatine, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A long-range radio tag uses radio energy harvesting and separates the functions of radiofrequency excitation and radio tag reading such that the reader may be displaced at a substantial distance from the radio tags. The ability of the radio tags to communicate with a distant reader is further enhanced by a query system which allows a highl...