ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,821, issued on June 24, was assigned to DL Technology LLC (Haverhill, Mass.).

"Micro-volume dispense pump systems and methods" was invented by Jeffrey P. Fugere (Hampton Falls, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a feed screw assembly for a fluid dispense pump, comprising a feed screw; a feed screw shaft extending from the feed screw; a spanner nut about the feed screw shaft; a bearing assembly about the feed screw shaft between the spanner nut and the feed screw The bearing assembly includes an outer ring that directly abuts the spanner nut; and an inner ring that rotates inside and relative to the outer ring, wherein th...