ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,398, issued on May 13, was assigned to LEMER PAX (La Chapelle-sur-Erdre, France).
"Anti-radiation viewing port" was invented by Pierre-Marie Lemer (Nantes, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an anti-radiation viewing port intended to be fitted to a wall opening provided in a wall which separates a space subjected to ionising radiation, the space being called a hot space, and a space which is not subjected to ionising radiation, the space being called a cold space. This anti-radiation viewing port includes a screen which is made from transparent radio-protective material and which is associated with a peripheral attach...