ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,962, issued on Sept. 15, was assigned to EPIC LIFT SYSTEMS (Houston). "Dart and clutch assembly" was invented by Robert G. Roycroft (Houst... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,963, issued on Sept. 15, was assigned to Weatherford Technology Holdings LLC (Houston). "Gas lift valve having ratcheting orifice" was inv... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,964, issued on Sept. 15, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia). "Selectively powering an electrical submersible pu... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,965, issued on Sept. 15, was assigned to Oil Technology Group LLC (Golden, Colo.). "Enhanced solvent recovery from tight rock and shale oi... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,966, issued on Sept. 15, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas). "Boosting well performance in geothermal syste... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,967, issued on Sept. 15, was assigned to CHONGQING UNIVERSITY (Chongqing, China). "Method of staged refracturing for fractured well" was i... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,968, issued on Sept. 15, was assigned to U.S. Well Services LLC (Willow Park, Texas). "Hydraulic fracturing equipment with non-hydraulic p... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,969, issued on Sept. 15, was assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES Co. LTD. (Yantai, China). "Electrically-driven fr... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,970, issued on Sept. 15, was assigned to Shijiazhuang Tiedao University (Shijiazhuang, China). "Well pattern arrangement method for in-sit... Read More
ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,971, issued on Sept. 15, was assigned to Halliburton Energy Services Inc. (Houston). "Downhole fluid separator in re-entry multilateral we... Read More