ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,882, issued on June 23, was assigned to Baker Hughes Holding LLC (Houston).

"Method and apparatus for identifying a bad mill track, and borehole system" was invented by Bryan Pendleton (Cypress, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for identifying a bad mill track, including running a whipstock assembly, including a whipstock, an anchor attached to the whipstock and a debris management device attached to the whipstock, the device including a tracer, to a kick-off point in a borehole, running a mill along the whipstock, and monitoring a cuttings stream for presence of the tracer. A whipstock assembly including a whipstock, an...