ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,894, issued on June 17, was assigned to Stryker Corp. (Portage, Mich.).

"Systems and methods for improving control responsiveness during aspiration" was invented by Adam Darwin Downey (Kalamazoo, Mich.), Brett Merkel (Portage, Mich.), Michael Teasdale Smith (Bellevue, Wash.), Robert Mitchell Baldwin (Grand Rapids, Mich.), Benjamin Fineout (Zeeland, Mich.), Jon Bodnar (Keller, Texas), Darryl D. Daniel II (Pflugerville, Texas), Anthony Gatica (Cedar Park, Texas) and Mark Friedman (Portage, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved contr...