ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,248, issued on May 6, was assigned to CASTLELOCK Corp. (San Luis Obispo, Calif.).
"Biometric firearm chamber lock" was invented by Shaun Tanaka (San Luis Obispo, Calif.), Thomas J. Mackin (San Luis Obispo, Calif.) and Ricardo Tan (San Luis Obispo, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The biometric firearm chamber lock is a biometric electro-mechanical locking system integrated firearm safety device. The device safely locks firearms by securing the firearm lock into the firearm chamber through the ejection port to prevent rounds from being fired. An electrical biometric sensor quickly unlocks the firearm lock from the firearm. A mech...