Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Subsea wellhead apparatus

Subsea wellhead apparatus

US Patent 4632188 · Granted Dec 30, 1986

Estimated economic value: $21,801,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and apparatus for controlling precession in a drilling assembly2010
Horizontal drilling2008
Method and apparatus for determining drilling paths to directional targets2003
Multi-zone profile control2000
Adjustable stabilizer for directional drilling1999
Adjustable stabilizer for directional drilling1998
Viscid oil well completion1997
Method and apparatus for drilling with high-pressure, reduced solid content liqu1996
Horizontal well completion1994
Development well drilling1988
Medium curvature directional drilling method1988
Measuring drillstem loading and behavior1987