ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,172, issued on Jan. 20, was assigned to Littelfuse Inc. (Rosemont, Ill.).
"Low resistance, high voltage and resistance stable PPTC material and manufacturing" was invented by Zhiyong Zhou (Shanghai), Jianhua Chen (Sunnyvale, Calif.) and Wei Zheng (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A novel polymer positive temperature coefficient (PPTC) material, device, and method of fabrication. The PPTC device may include a PPTC body; a first electrode disposed on a first surface of the PPTC body and a second electrode disposed on a second surface of the PPTC body, opposite the first electrode. The PPTC body may include a polymer matrix; and ...