ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,725, issued on Sept. 15, was assigned to ABB Schweiz AG (Baden, Switzerland).

"Method of forming a contact piece for a circuit breaker" was invented by Christoph Kenel (Baden, Switzerland), Markus Hoidis (Niederrohrdorf, Switzerland) and Thierry Delachaux (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for forming a contact piece for a circuit breaker, the contact piece comprising a reinforcement phase and a conductive phase, the method comprising: providing a slurry of the reinforcement phase in liquid; freeze casting the slurry, to form a cast comprising a frozen liquid structure and a reinforcement phase structure; r...