ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,090, issued on May 27, was assigned to STAVRO MEDICAL INC. (Martinez, Calif.).

"Extracorporeal blood treatment systems and methods employing batch processing" was invented by Lakhmir Singh Chawla (Martinez, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are methods and systems for a body-fluid (e.g., blood) treatment. The methods and systems include (a) conveying a volume of body-fluid (e.g., blood) via a first conduit from a vascular access of a patient to a blood chamber at a first flow rate, the first conduit having only a single lumen; (b) conveying the body-fluid (e.g., blood) from the blood chamber through a filtration device ...