ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,941, issued on Dec. 23, was assigned to Halliburton Energy Services Inc. (Houston).

"Measuring extraction efficiency for drilling fluid" was invented by Prashant Shekhar (Cypress, Texas) and Mohamed Saber Abouhussien (Spring, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes an extraction system having an inlet channel and an outlet channel to receive fluid and to output processed fluid. The system also includes an extraction device to capture a first sample of fluid from the inlet channel, capture a second sample from the processed fluid from the outlet channel, and extract gas, liquid, or solids from the first sample and furth...