ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,377, issued on Aug. 12, was assigned to Halliburton Energy Services Inc. (Houston).

"System to optimize centrifugal pumps and manifolding in variable rate slurry pumping applications" was invented by Chad A. Fisher (Duncan, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes providing a total flow rate of a proppant slurry by utilizing a slurry pump to provide a concentrated slurry flow rate of a concentrated slurry, utilizing a clean fluid pump to provide a clean pump flow rate of a clean fluid, and combining the clean pump flow rate of the clean fluid with the concentrated slurry flow rate of the concentrated slurry to provide t...