ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,402, issued on March 24, was assigned to Gunnar LLLP (Magnolia, Texas).

"Method and apparatus for magnetic ranging while drilling" was invented by Clinton Moss (Bakersfield, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, devices and systems are disclosed for magnetically ranging while drilling with a coiled tubing unit or drill pipe by way of a an electrically conducive but environmentally electrically insulated wire installed through a coiled tubing spool or drill pipe complete with electrically insulative subs in the coiled tubing bottom hole assembly or drill pipe. The method and systems allow for the injection of excitation curr...