ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,461, issued on June 30, was assigned to Caterpillar Inc. (Peoria, Ill.).

"System for measuring load on lower boom block yoke of pipelayers" was invented by Simon Tabutin (Saint Marcel en Murat, France), Sean David Lawson (East Peoria, Ill.) and Aaron Gnagey (Morton, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for measuring load, from a cable, associated with a boom of a pipelayer is disclosed. The system includes a linkage configured to be coupled between a boom block, engaged with the cable, and a portion of the pipelayer. In addition, the system includes a load cell coupled between the linkage and the boom block for measuring the ...