ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,507, issued on Feb. 11, was assigned to DEKA Products LP (Manchester, N.H.).

"Blood treatment systems and methods" was invented by Dirk A. van der Merwe (Canterbury, N.H.), Kevin L. Grant (Litchfield, N.H.), Michael J. Wilt (Windham, N.H.), Todd A. Ballantyne (Amherst, N.H.), Jonathan P. Rosse (Amherst, N.H.), Catharine N. Flynn (Manchester, N.H.) and Brian K. Yee (Manchester, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Dialysis systems are disclosed comprising new fluid flow circuits. Systems may include blood and dialysate flow paths, where the dialysate flow path includes balancing, mixing, and/or directing circuits. Dialysate preparation...