ALEXANDRIA, Va., March 26 -- United States Patent no. 12,260,395, issued on March 25, was assigned to Capital One Services LLC (McLean, Va.).

"Card with field strength visualization display" was invented by Kevin Osborn (Newton Highlands, Mass.), David Kelly Wurmfeld (Palm Bay, Fla.) and Bryant Yee (Silver Spring, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, a near-field communication card may be provided with an NFC-field-strength visualization display and a transparent window through which the NFC-field-strength visualization display is visible. In some embodiments, a token (e.g., the NFC card) may be constructed to include an electromagnetic field visualization display, a radiof...