Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Galling resistant drill pipe tool joint and corresponding drill pipe

Galling resistant drill pipe tool joint and corresponding drill pipe

US Patent 9970242 · Granted May 15, 2018

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

High-chromium heat-resistant steel2021
Pressure sensor device, control device, and pressure sensor unit2021
Threaded joint sealed to internal and external pressures2020
Air-conditioning apparatus2019
Air-conditioning apparatus2019
Semiconductor device, position detection device, and control method of semicondu2019
Air-conditioning apparatus2018
Semiconductor device, position detection device, and control method of semicondu2018
Air-conditioning apparatus2017
Air-conditioning apparatus and method of designing same2017
Air-conditioning apparatus2017
655 MPa grade martensitic stainless steel having high toughness and method for m2014