ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,657, issued on Oct. 6, was assigned to Cooled Edge Bits Inc. (Houston).
"Hydrojets rotary drill bit" was invented by Anatoli Alimpievich Borissov (Sugarland, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrojet rotary drill bit (10) is provided for drilling a hole in a subsurface formation. The bit body (12) includes a plurality of axially extending ribs (16a, b, c, d, e, and f) and a flow channel between adjacent ribs. A plurality of cutting elements are fixedly mounting on a respective one of the plurality of ribs. A plurality of flow nozzles (20a, b, c, d, e, and f) made on respective one of the plurality of ribs to direct fluid (mud) t...