US Patent Issued to Metrasens on June 24 for "Security system with ferromagnetic sensing" (British Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,669, issued on June 24, was assigned to Metrasens Ltd. (Worcestershire, Great Britain).

"Security system with ferromagnetic sensing" was invented by Mark Nicholas Keene (Worcestershire, Great Britain) and Simon Wray Goodyear (Worcestershire, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A security system including a visitor/intruder register element configured to register a visitor/intruder in a detection zone and a passive ferromagnetic detection element configured to indicate a target-sized or larger ferromagnetic object in the detection zone, where the detection zone covers, or is proximate or adjacent to, an entry point of a locat...