ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,189, issued on March 18, was assigned to Repligen Corp. (Waltham, Mass.).

"Encapsulated valve system and method of use" was invented by Michael C. Gagne (Carson City, Nev.) and Steven V. Cates (Corona, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An encapsulated valve system includes a first housing portion having a first facing surface, the first facing surface comprising a plurality of branch pathways formed as a recess within the first facing surface. The valve system further includes a second housing portion having a second facing surface, the second facing surface comprising a plurality of branch pathways formed as a recess within the...