ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,727,585, issued on Sept. 8.

"Animal-activated system using unique biological features" was invented by Alexander P. Seifert (Antigo, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and method for animal identification using animal nose prints are disclosed. The system comprises a sensor connected to a computer. The computer contains one or more unique animal nose prints. When an animal nose touches the sensor, the computer determines if the animal nose matches one of the nose prints in the computer. If it does, the system can include a motor or pump to activate additional events such as opening a door, opening a gate, or dispensing food, tre...