ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,117, issued on April 21, was assigned to Halliburton Energy Services Inc. (Houston).

"Solid state tuning with coupled inductors for downhole systems" was invented by Mark Wayne Hayenga (Sunnyvale, Calif.), Matthew C. Griffing (Kingwood, Texas), Jebreel M M Salem (Spring, Texas), Ranganathan Sridharan (Houston), Imran Sharif Vehra (Houston) and Maxim Yushko (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed embodiments include multi-channel communications filters, multi-channel communications systems, apparatuses that utilize a tunable multi-channel communications filter for antenna tuning, and methods to perform multi-channel com...