ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,765, issued on March 25, was assigned to Shaw Industries Group Inc. (Dalton, Ga.).

"Nonwoven surface covering elements having tongue and groove" was invented by James Burns (Cartersville, Ga.), Derek Bass (Cartersville, Ga.) and Thomas Odum (Tunnel Hill, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface covering element can have a rigid core. The rigid core can include at least one densified fiber batt. The rigid core can have a first surface and an opposed second surface that are spaced apart along a first axis. The rigid core can have a plurality of edges that define a periphery of the rigid core. The plurality of edges can include at ...