Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Subsurface safety valves and method and apparatus for their operation

Subsurface safety valves and method and apparatus for their operation

US Patent 5170845 · Granted Dec 15, 1992

Estimated economic value: $14,030,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Communication tool for accessing a non annular hydraulic chamber of a subsurface2010
Communication tool for accessing a non annular hydraulic chamber of a subsurface2009
Communication tool for accessing a non annular hydraulic chamber of a subsurface2007
Subsurface safety valve having a communication tool accessible non annular hydra2006
Communication tool for accessing a non annular hydraulic chamber of a subsurface2005
Testing drill packer2005
Subsurface safety valve and method for communicating hydraulic fluid therethroug2005
Subsurface safety valve lock out and communication tool and method for use of th2004
Apparatus and method for gravel packing a horizontal open hole production interv2004
Subsurface safety valve lock out and communication tool and method for use of th2003
Retrievable sliding sleeve flow control valve for zonal isolation control system2003
Subsurface safety valve lock out and communication tool and method for use of th2003