ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,639, issued on May 13, was assigned to Cilag GmbH International (Zug, Switzerland).

"Estimating state of ultrasonic end effector and control system therefor" was invented by Cameron R. Nott (Fairfield, Ohio), Foster B. Stulen (Johns Island, S.C.), Fergus P. Quigley (Mason, Ohio), John E. Brady (Cincinnati), Gregory A. Trees (Loveland, Ohio), Amrita Singh Sawhney (Pittsburgh), Rafael J. Ruiz Ortiz (Mason, Ohio), Patrick J. Scoggins (Loveland, Ohio), Kristen G. Denzinger (Cincinnati), Craig N. Faller (Batavia, Ohio), Madeleine C. Jayme (Cincinnati), Alexander R. Cuti (Pittsburgh), Matthew S. Schneider (Blue Ash, Ohio), Chad P. Boudreaux (Cincinnati), Brian D. Black (Loveland, Ohio),...