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For the Inventor, By the Inventor

Houston, TX, United States of America

Weatherford U.s., Inc.


USPTO Granted Patents = 42


Trademarks = 5

Forward Citations = 1,361

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38 inventors (with patents filed for the assignee):

goldMedal Thurman B Carter (9 out of 37 patents)

silverMedal Michael J Woodward (5 out of 8 patents)

bronzeMedal Friedrich H Langer (4 out of 4 patents)

4.  David E Schneider (3 out of 9 patents)

5.  Mark W Schnitker (3 out of 12 patents)

6.  Joerg E Schulze-Beckinghausen (3 out of 9 patents)

7.  William D Stringfellow (2 out of 5 patents)

8.  John Douglas Roberts (2 out of 19 patents)

9.  Guy LaMont McClung, Iii (2 out of 101 patents)

10.  Mark Christopher Glaser (2 out of 27 patents)

11.  William A Blizzard, Jr (2 out of 21 patents)

12.  Christopher P Hutchinson (2 out of 6 patents)

13.  Charles W Pleasants (1 out of 17 patents)

14.  Graham Myles Ruark (1 out of 7 patents)

15.  Steve R Delgado (1 out of 8 patents)


Core Competencies:
Wellbore Milling Tools
Cementing Systems
Whipstock Technology
Milling Operations
Wellbore Sidetracking
Casing Cutting Tools
Hydraulic Lock Alleviation
Fluid Spray Apparatus
Centralizer Devices
Active Jaw Tongs
Stage Tools
Nozzle Effect Protectors

42 patents:

1. 5720349 - Starting mill and operations (1998-02-24),
2. 5642787 - Section milling (1997-07-01),
3. 5626189 - Wellbore milling tools and inserts (1997-05-06),
4. 5620051 - Whipstock (1997-04-15),
5. 5584350 - Wellbore sidetracking methods (1996-12-17),
6. 5577566 - Releasing tool (1996-11-26),
7. 5575333 - Centralizer (1996-11-19),
8. 5553667 - Cementing system (1996-09-10),
9. 5531271 - Whipstock side support (1996-07-02),
10. 5522461 - Mill valve (1996-06-04),
11. 5464062 - Metal-to-metal sealable port (1995-11-07),
12. 5452759 - Whipstock system (1995-09-26),
13. 5429187 - Milling tool and operations (1995-07-04),
14. 5425417 - Wellbore tool setting system (1995-06-20),
15. 5411049 - Valve (1995-05-02),
Weatherford U.S., Inc. is a leading provider of integrated oilfield services, technology, and equipment. With a strong presence in the United States, the company offers innovative solutions for every phase of the drilling, evaluation, completion, production, and intervention cycles. Their expertise spans across various sectors of the energy industry including oil and gas, renewables, and geothermal resources.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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42 Patents

#134 in Houston, TX

#457 in Texas

#7,983 in US

#15,862 in the World

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Houston, TX, United States of America

Weatherford U.s., Inc.

Forward Citations = 1,361

38 inventors:

goldMedal Thurman B Carter (9 out of 37 patents)

silverMedal Michael J Woodward (5 out of 8 patents)

bronzeMedal Friedrich H Langer (4 out of 4 patents)

4.  David E Schneider (3 out of 9 patents)

5.  Mark W Schnitker (3 out of 12 patents)

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