ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,399, issued on May 5, was assigned to Roadtek Enterprises Inc..
"Hydraulic piston pump assemblies" was invented by Dustin Nielson (Sedro Wolley, Wash.) and Maggie Hu (Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Hydraulic piston pump assemblies are disclosed herein. The hydraulic piston pump assemblies may include a hydraulic unit base that includes a plurality of pump pistons to output hydraulic fluids with different characteristics that can be selectively used based on load conditions."
The patent was filed on March 22, 2024, under Application No. 18/614,462.
*For further information, including images, charts and tables, please...