Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Subsea casing hanger suspension system

Subsea casing hanger suspension system

US Patent 4836579 · Granted Jun 6, 1989

Estimated economic value: $1,518,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Nested stack-down casing hanger system for subsea wellheads2003
Non-intrusive pressure measurement device for subsea well casing annuli2003
Release mechanism for use with a remote tool1996
Temporary abandonment cap and tool1992
Subsea well casing hanger packoff system1990
Subsea well casing hanger packoff system1990
Subsea well casing hanger packoff system1990
Casing hanger and packoff running tool1989
Subsea casing hanger suspension system1986
Valve stem-to-bonnet backseat1985