ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,503, issued on May 20, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Fluid sealing for downhole acoustic measurement tool" was invented by Zheng Li (Clamart, France), Orland Guedes (Clamart, France), Stephane Guimont (Clamart, France), Viet Tung Nguyen (Clamart, France), Roel Van Os (Clamart, France) and Hiroshi Hori (Clamart, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid seal assembly having a sleeve disposed circumferentially around a downhole tool. First and second fasteners extend circumferentially around the sleeve proximate respective first and second ends of the sleeve. The first and second fasteners may ...