ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,861, issued on July 21, was assigned to University of Washington (Seattle).

"Method to create patterns in tissue growth for tissue engineering" was invented by Michael R Bailey (Seattle), Adam D. Maxwell (Seattle), Mohamed Abdalla Ghanem (Seattle) and Diane Dalecki (Rochester, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for creating patterns in tissue growth for tissue engineering are disclosed. In one embodiment, a method for arranging biological cells along predetermined patterns using an ultrasound includes: emitting the ultrasound by an ultrasound transducer; transmitting the ultrasound through a holographic lens towa...