ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,815, issued on Sept. 23, was assigned to Halliburton Energy Services Inc. (Houston).

"Wellbore tractor including a tractor power receive module" was invented by Michael Linley Fripp (Singapore), Wei Zhang (Houston) and Aswin Balasubramanian (Spring, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a wellbore tractor, a well system and a method. The wellbore tractor, in one aspect, includes a tractor drive module, the tractor drive module configured to propel the wellbore tractor within a wellbore extending through one or more subterranean formations, and well as a tractor electronics module coupled to the tractor drive module, the t...