Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Annular gas trap

Annular gas trap

US Patent 4615387 · Granted Oct 7, 1986

Estimated economic value: $102,149,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Flowline extendable pigging valve assembly2001
Extendable semi-clustered subsea development system2000
Subsea tree cap well choke system1991
Chemical injection valve1991
Water meter replacement plug1990
Heave compensated stabbing and landing tool1989
Injection mandrel1989
Metal seal tubing plug1987
Acoustically controlled electro-mechanical circulation sub1983
Acoustically actuated downhole blowout preventer1983
Depth measurements1982
Acoustic transmitter and method to produce essentially longitudinal, acoustic wa1982