ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,071, issued on April 21, was assigned to KENNAMETAL INDIA LTD. (Bangalore, India).
"Earth-drilling tool" was invented by Nagesh Kumar Gk (Bangalore, India), Mahesh Magadaiah (Bangalore, India), Deepak S. Achar (Bangalore, India), Prashanth Suresh (Bangalore, India), Srihari Varma (Bangalore, India) and Balachandra Hegde (Bangalore, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drill-bit may include a head which includes a face and a gage. The face may include a plurality of face button bits. The gage may include a plurality of gage button bits evenly spaced around the head. A plurality of major chip gage gashes may be evenly spaced around ...