ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,519, issued on May 27, was assigned to University of Washington (Seattle).

"Method and apparatus for flow-based, single-particle and/or single-molecule analysis" was invented by Daniel T. Chiu (Seattle), Yifei Jiang (Seattle), Mengxia Zhao (Seattle) and Yuanhua Cheng (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for analyzing particles flowing in a channel are described. In an embodiment, the channel is configured to flow a particle through a lumen of the channel, the channel defining an interrogation window configured to allow light to pass into and out of the lumen; a light engine comprising: a first light source posi...