Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Device for an electromechanical hoisting machine, especially for use when drilling oil and gas wells

Device for an electromechanical hoisting machine, especially for use when drilling oil and gas wells

US Patent 8277351 · Granted Oct 2, 2012

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Cylinder, hydraulic system, construction machine and procedure2024
Apparatus and method to maintain constant fluid circulation during drilling2013
Power tong device2013
Apparatus for directional control of a drilling tool2013
Wind turbine device2013
Sealing and anchoring device for use in a well2013
Adjustable winged centering tool for use in pipes with varying diameter2011
Torque converter for use when drilling with a rotating drill bit2010
Separation device for material from a drilling rig situated on the seabed2010
Drilling rig placed on the sea bed and equipped for drilling of oil and gas well2009
Dynamic damper for use in a drill string2009
Drill pipe spinner device2006