ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,483, issued on March 11, was assigned to Piana Nonwovens LLC (Cartersville, Ga.).

"Self-rising board molding" was invented by Andrea Piana (Cartersville, Ga.), Andy Hollis (Cartersville, Ga.), Mehran Jafari (Cartersville, Ga.), Helias Andriessen (Cartersville, Ga.), Sang-hoon Lim (Cartersville, Ga.) and Eric McCann (Cartersville, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Expandable substrates, which are referred to as blanks, are created by compressing thermobonded nonwovens after heating the binder material above its melting temperature, and then cooling the compressed nonwovens so that the binder material hardens and holds the fibers of ...