ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,815, issued on Jan. 13, was assigned to Hewlett-Packard Development Co. LP (Spring, Texas).

"Barriers in microfluidic channels" was invented by Jacob Shane Sasser (San Luis Obispo, Calif.), Alexander Govyadinov (Corvallis, Ore.), Brian J. Keefe (San Diego), David S. Clague (San Luis Obispo, Calif.), Natalie Taylor Weisenburger (San Luis Obispo, Calif.) and Nicolas Robert Medjo (San Luis Obispo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one example in accordance with the present disclosure, a fluid manipulation system is described. The fluid manipulation system includes a microfluidic channel through which fluid is to flow. The fluid i...