ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,361, issued on March 17, was assigned to Cruz Foam Inc. (Santa Clara, Calif.).
"Biodegradable foams" was invented by Xiaolin Zhang (San Jose, Calif.), Marco Rolandi (Los Gatos, Calif.) and John Felts (Santa Cruz, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composite material includes a polymer matrix with a polymer having D-glucosamine monomer units and 50% or fewer N-acetyl-D-glucosamine monomer units. A salt can be disposed in the polymer matrix. A dispersed phase is disposed in the polymer matrix with the salt, and the dispersed phase and the polymer matrix form a porous composite foam. The porous composite foam includes, by weight, ...