ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,221, issued on April 14. "Ladder that facilitates the contraction of handrails" was invented by Miaoren Chen (Jinhua, China). According t... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,222, issued on April 14, was assigned to LITTLE GIANT LADDER SYSTEMS LLC (Springville, Utah). "Ladders, feet for ladders and hinges for la... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,223, issued on April 14, was assigned to BAUER Spezialtiefbau GmbH (Schrobenhausen, Germany). "Drilling assembly" was invented by Matthias... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,224, issued on April 14, was assigned to Landmark Graphics Corp. (Houston). "Fault interpretation and feature learning on full azimuth sta... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,225, issued on April 14, was assigned to HELMERICH & PAYNE TECHNOLOGIES LLC (Tulsa, Okla.). "Apparatus and methods for controlling drillin... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,226, issued on April 14, was assigned to Baker Hughes Oilfield Operations LLC (Houston). "Tubular member with asymmetric burst and collaps... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,227, issued on April 14, was assigned to Halliburton Energy Services Inc. (Houston). "Downhole concentric wet-mate connector" was invented... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,228, issued on April 14, was assigned to SCIENTIFIC DRILLING INTERNATIONAL INC. (Houston). "Alignable guidance device for casing entry mil... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,229, issued on April 14, was assigned to Advanced Tool & Supply LLC (Broussard, La.). "Multi-purpose compensator system" was invented by B... Read More
ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,230, issued on April 14, was assigned to Sandvik Mining and Construction Oy (Tampere, Finland). "Control system, rock drilling rig, and me... Read More