ALEXANDRIA, Va., July 15 -- United States Patent no. 12,660,997, issued on June 23, was assigned to The Regents of the University of California (Oakland, Calif.).

"System and method for dynamic optical contrast imaging" was invented by Maie A. St. John (Oakland, Calif.), Peter Andras Pellionisz (Mountain View, Calif.), Oscar M. Stafsudd (Oakland, Calif.) and Yong Hu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for imaging tissue is provided. The method includes illuminating a target tissue via a light-emitting diode. The method further includes acquiring a plurality of timed images of the target tissue including an excitation image corresponding to an excitation state of the light-emittin...