ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,962, issued on July 28, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Spring collar shoulder" was invented by Edward George Parkin (Stonehouse, Great Britain) and Keith Lathan (Herefordshire, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spring shoulder kit includes an expanding shoulder and a retaining sleeve. The expanding shoulder includes a wedge outwardly radially extending from a radially flexible finger. The retaining sleeve is slidably insertable into the expanding shoulder to block inward radial movement of the wedge."

The patent was filed on March 25, 2025, under Application No. 19/089,114.

*For fur...