ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,181, issued on March 3, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Systems and methods for adjusting a trailer brake gain to optimize vehicle efficiency when towing" was invented by Mohammadali Shahriari (Markham, Canada), Ashraf Abualfellat (Grand Blanc, Mich.), Henry Warren Grasman (Flushing, Mich.), Christopher Ratliff (Linden, Mich.), Reza Zarringhalam (Whitby, Canada) and Brian Porto (Wixom, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle system for a vehicle towing a trailer includes a trailer control module configured to control actuation of actuators of the trailer and a vehicle control module in communica...