Weatherford Holding U.s., Inc.

Calculating rank

USPTO Granted Patents = 6

Trademarks = 4

Forward Citations = 318

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7 inventors (with patents filed for the assignee):

Vern Arthur Hult (4 out of 11 patents)

Darryl A Bourgoyne (2 out of 7 patents)

Edward Leigh Schubert (2 out of 2 patents)

4. Curtis Christopher Blundell (2 out of 2 patents)

5. Don M Hannegan (1 out of 41 patents)

6. Tammy T Bourgoyne (1 out of 1 patent)

7. Adam T Bourgoyne, Jr (1 out of 3 patents)

6 patents: Sort by Forward Citations

1. 6263982 - Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling (2001-07-24),

2. 6138774 - Method and apparatus for drilling a borehole into a subsea abnormal pore (2000-10-31),

3. 6135740 - Pump drive head backspin retarder (2000-10-24),

4. 6125931 - Right angle drive adapter for use with a vertical drive head in an oil (2000-10-03),

5. 6113355 - Pump drive head pump assembly with a hydraulic pump circuit for (2000-09-05),

6. 6079489 - Centrifugal backspin retarder and drivehead for use therewith (2000-06-27),

Company Overview

Weatherford is a leading provider of equipment and services for the drilling, evaluation, completion, production, and intervention of oil and natural gas wells. With a global presence and innovative technology solutions, Weatherford helps customers optimize their operations and maximize recovery rates.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

6 Patents

#727 in Houston, TX

#2,913 in Texas

#45,063 in US

Houston, TX, United States of America