ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,397, issued on July 28, was assigned to United States of America as represented by the Secretary of the Air Force (Wright-Patterson AFB, Ohio).

"Modular graphene oxide-based microbial fuel filter and process of making and using same" was invented by Oscar N. Ruiz (Bellbrook, Ohio), Moshan S. P. Kahandawala (Washington Township, Ohio) and Kurukulasuriya Fernando (Beavercreek, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a reclamation and recycling process for graphene oxide, a scaffold comprising graphene oxide, a modular graphene oxide-based microbial fluid filter and a filter tool that allows the correct comp...