US Patent Issued to KLX Energy Services on March 18 for "External wellhead sealing and clamping system" (Oklahoma Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,948, issued on March 18, was assigned to KLX Energy Services LLC (Houston).

"External wellhead sealing and clamping system" was invented by Steve Wehrenberg (Mustang, Okla.), Shane Ramsfield (Tuttle, Okla.) and Bernt Olsen (Edmond, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A seal and clamping system for a wellhead assembly having a housing with a first end configured to seal to the outer adapter surface above an upper outward-projecting shoulder on the wellhead assembly, a second end configured to seal to the tubing head below a lower outward-projecting shoulder, and a clamping system configured to hold the housing in position about the ...