ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,468, issued on June 10, was assigned to Merlin Technology Inc. (Kent, Wash.).

"Portable device with measuring leg for display of noise information in coordination with measured distance and transmission frequency selection" was invented by Loc Viet Lam (Renton, Wash.) and Albert W. Chau (Woodinville, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A portable device is described for use with a system in which a transmitter signal is transmitted by a transmitter from within the ground at a transmission frequency during an operational procedure. The portable device is configured for measuring electromagnetic noise. An extension leg supports a meas...