ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,748, issued on May 13, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"System and method of performing fan trim balancing" was invented by Matthew Chiasson (Milton, Canada), Golnaz Shaverdi (Montreal), Jason Tremblay (Montreal), Guy Riverin (Montreal), Faran Hafeez (Mississauga, Canada) and Bruce Calvert (Burlington, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control system for a turbine engine assembly includes a controller operable to control operation of the turbine engine assembly and to determine a trim configuration to balance a rotating engine structure associated with the turbine engine assembly. The controlle...