ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,625, issued on May 20, was assigned to Fast & Fluid Management B.V. (Sassenheim, Netherlands).

"Liquid dispenser" was invented by Marcel Hendrikus Petrus Engels (Voorhout, Netherlands) and Mark Baak (Lisse, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "Dispenser for dispensing a liquid, in particular a colorant for paint. The dispenser comprises a piston pump and a valve. The piston pump comprises a cylinder and a main piston reciprocatingly fitted inside the cylinder. The valve comprises a valve housing with a dispense opening (16), and a valve core within the valve housing. The valve core is rotatable and comprises a main channel and ...