Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Well safety valve

Well safety valve

US Patent 4461353 · Granted Jul 24, 1984

Estimated economic value: $10,177,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Downhole tool actuator with viscous fluid clearance paths2023
Dual flapper safety valve2011
Dual flapper safety valve2010
Thermally-controlled valves and methods of using the same in a wellbore2006
Hydraulic control assembly for actuating a hydraulically controllable downhole d2004
Retrievable well packer apparatus and method2002
Safety valve utilizing an isolation valve and method of using the same2001
Safety valve utilizing an isolation valve and method of using the same2001
Extreme service packer having slip actuated debris barrier2001
Service packer with spaced apart dual-slips2000
Apparatus for completing a subterranean well and associated methods of using sam1998
Methods of completing a subterranean well1998