ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,631, issued on May 20, was assigned to DEKA Products LP (Manchester, N.H.).

"Medical treatment system and methods using a plurality of fluid lines" was invented by David A. Beavers (Manchester, N.H.), Michael G. Norris (Manchester, N.H.), John M. Kerwin (Manchester, N.H.), Andrew S. Coll (Goffstown, N.H.), Paul G. Girouard (Allenstown, N.H.), Robert J. Bryant Jr. (Manchester, N.H.), Geoffrey P. Spencer (Manchester, N.H.), Joseph P. Rushlow (Goffstown, N.H.) and Jacob W. Scarpaci (Manchester, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Improvements in fluid volume measurement systems are disclosed for a pneumatically actuated diaphragm pump i...