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For the Inventor, By the Inventor

Tulsa, OK, United States of America

Dowell Schlumberger Incorporated


USPTO Granted Patents = 127


Trademarks = 5

Forward Citations = 4,423

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152 inventors (with patents filed for the assignee):

goldMedal Robert M Sorem (11 out of 17 patents)

silverMedal David Milton Eslinger (9 out of 66 patents)

bronzeMedal Richard M Hodge (9 out of 9 patents)

4.  Donald C Cameron (7 out of 9 patents)

5.  Wayne W Frenier (6 out of 32 patents)

6.  Bart V Thomeer (5 out of 10 patents)

7.  Erik B Nelson (4 out of 40 patents)

8.  Clare H Kucera (4 out of 12 patents)

9.  William R McIntire (4 out of 4 patents)

10.  Louise Bailey (3 out of 23 patents)

11.  Annie Audibert (3 out of 21 patents)

12.  Kenneth H Nimerick (3 out of 19 patents)

13.  Paul I Reid (3 out of 4 patents)

14.  Joseph D Scranton (3 out of 3 patents)

15.  Harold D Brannon (3 out of 3 patents)


Core Competencies:
Fluid Loss Control
Composite Coiled Tubing
Crosslinked Fracturing Fluid
Wellbore Fluid
Inflatable Packer
Cement Composition
Fracturing Events Detection
High-Pressure Well Fracturing
Chemical Removal Processes
Subterranean Well Treatment
Drilling Fluid Applications
Corrosion Inhibition

127 patents:

1. 5948733 - Fluid loss control (1999-09-07),
2. 5933945 - Composite coiled tubing apparatus and methods (1999-08-10),
3. 5669456 - Process and water-base fluid utilizing hydrophobically modified (1997-09-23),
4. 5658861 - Delayed borate crosslinked fracturing fluid having increased temperature (1997-08-19),
5. 5658859 - Pseudoplastic mixed metal layered hydroxide fluid with fluid loss (1997-08-19),
6. 5637556 - Process and water-base fluid for controlling the dispersion of solids (1997-06-10),
7. 5627143 - Wellbore fluid (1997-05-06),
8. 5597783 - Drilling processes and fluid used in well drilling applications (1997-01-28),
9. 5594050 - Cement composition containing chemically crosslinked polyvinyl alcohol (1997-01-14),
10. 5466063 - Device for continuously mixing liquid additives into a fluid (1995-11-14),
11. 5439053 - Reinforcing slat for inflatable packer (1995-08-08),
12. 5429191 - High-pressure well fracturing method using expansible fluid (1995-07-04),
13. 5404947 - Pre-formed stress rings for inflatable packers (1995-04-11),
14. 5398755 - Stress rings for inflatable packers (1995-03-21),
15. 5390738 - Inflatable packer inner bladder retention and seal (1995-02-21),
Dowell Schlumberger Incorporated is a leading global provider of technology and services for the oil and gas industry. They offer a wide range of solutions including drilling services, reservoir characterization, production optimization, and digital solutions. With a strong focus on innovation and sustainable practices, Dowell Schlumberger strives to enable customers to maximize their reservoir performance while reducing environmental impact. Visit their website for more information.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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127 Patents

#2 in Tulsa, OK

#11 in Oklahoma

#2,927 in US

#6,128 in the World

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Tulsa, OK, United States of America

Dowell Schlumberger Incorporated

Forward Citations = 4,423

152 inventors:

goldMedal Robert M Sorem (11 out of 17 patents)

silverMedal David Milton Eslinger (9 out of 66 patents)

bronzeMedal Richard M Hodge (9 out of 9 patents)

4.  Donald C Cameron (7 out of 9 patents)

5.  Wayne W Frenier (6 out of 32 patents)

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