ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,954, issued on Dec. 30, was assigned to WEATHERFORD TECHNOLOGY HOLDINGS LLC (Houston).
"Seal life enhancement for rotating control device" was invented by Tuong T. Le (Katy, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotating control device can include a groove formed on a housing, and an elastomeric ring isolating inner and outer portions of the groove, the elastomeric ring permitting fluid communication between the inner and outer portions of the groove in response to a pressure differential from the inner to the outer portion of the groove. A method can include forming a circumferentially extending groove, providing fluid communicatio...