ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,356, issued on Oct. 7, was assigned to SINTX Technologies Inc. (Salt Lake City).
"Antipathogenic fibrous material" was invented by Bryan J. McEntire (Salt Lake City), Ryan M. Bock (Salt Lake City) and Bhajanjit Singh Bal (Salt Lake City).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is an antiviral face mask and methods of use thereof to inactivate a virus in contact with the face mask. The face mask may include a fibrous material with silicon nitride powder impregnated therein and a layer surrounding the fibrous material. In some embodiments, silicon nitride is present in the fibrous material at a concentration of about 30 wt. % to ...