ALEXANDRIA, Va., April 21 -- United States Patent no. 12,608,581, issued on April 21, was assigned to Zebra Technologies Corp. (Lincolnshire, Ill.).

"Wristbands having RFID circuits with non-overlapping antenna" was invented by Chad E. Tripp (Jacksonville, Fla.) and Steven J. Vandercar (Rolling Meadows, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wristband has a flexible elongated body with an open state in which the wristband is capable of being positioned in a planar configuration and a closed state in which the wristband is wrapped in a loop. An RFID circuit is supported by the body and is positioned on the body such that the RFID circuit is configured to be included in the loop when the wristba...