US Patent Issued to Halliburton Energy Services on July 14 for "Drag block assembly with no external fasteners" (Singaporean, British Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,404, issued on July 14, was assigned to Halliburton Energy Services Inc. (Houston).

"Drag block assembly with no external fasteners" was invented by Tim Simmonds (Singapore), Peter Reid Maher (Singapore), Boon Yen Er (Singapore), Garry Martin Howitt (Aberdeen, Great Britain) and Gabriel Yun Chong Chang (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of a downhole fastening method and apparatus are disclosed herein. In one embodiment, apparatus for use in a downhole environment comprises a sleeve, the sleeve including a plurality of longitudinal receiving slots in an external surface thereof; a plurality of drag blocks positione...