Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Apparatus for optional straight or directional drilling underground formations

Apparatus for optional straight or directional drilling underground formations

US Patent 5065826 · Granted Nov 19, 1991

Estimated economic value: $11,788,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Hormone containing emulsion2017
Oxygen sensor and indicator for medical use2013
Oxygen sensor and indicator for medical use2013
Apparatus and method for drilling boreholes1997
Apparatus for optional straight or directional drilling underground formations1994
Apparatus for optional straight or directional drilling underground formations1994
Method and apparatus for horizontal drilling1991
Friction bearing for deep well drilling tools1990
Drill bit direct drive for deep well drilling tools1989
Drill bit direct drive for deep well drilling tools1989
Apparatus for optional straight or directional drilling underground formations1988
Apparatus for optional straight or directional drilling underground formations1988