ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,633, issued on April 29, was assigned to Cattron North America Inc. (Warren, Ohio).

"Radio frequency (RF) diagnostic coverage for wireless proximity stop systems and corresponding methods of operating wireless proximity stop systems" was invented by David Stagg (Flat Rock, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless Proximity Stop system includes one or more Machine Safety Devices (MSDs) and one or more Personal Safety Devices (PSDs). Each MSD includes a wireless communication interface with Diagnostic Coverage (DC). Each PSD includes a wireless communication interface with Diagnostic Coverage (DC) for wireless communication with t...