ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,460, issued on May 13, was assigned to Datec Coating Technologies Ltd. (Misissauga, Canada).
"Self-limiting thick film positive temperature coefficient of resistivity (PTCR) resistor compositions" was invented by William Kevin O'Keefe (Georgetown, Canada), Minh Hao Pham (Mississauga, Canada) and Abdullah Khalil (Mississauga, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclose provides a sol-gel paste composition of matter that is provided for application to a substrate to form an electrically conductive coating which can be used, for example, as a resistor in a thick-film resistive heater, which a positive temperature coeffici...