Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Apparatus for subsea wells including valve passageway in the wall of the wellhead housing for access to the annulus

Apparatus for subsea wells including valve passageway in the wall of the wellhead housing for access to the annulus

US Patent 6293345 · Granted Sep 25, 2001

Estimated economic value: $3,444,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Subsea well drilling and/or completion apparatus2001
Cable connector2001
Subsea wellhead apparatus2000
Wellhead system and method for use in drilling a subsea well2000
Connector1999
Riser for use in drilling or completing a subsea well1999
Apparatus for use in lowering a well pipe into alignment with a subsea conduit1997
Subsea wellhead apparatus1997
Riser connector1997
Well apparatus1996
Connector with opposite moving cam rings1995
Offshore drilling apparatus1995