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For the Inventor, By the Inventor

St. Louis, MO, United States of America

Petrolite Corporation


USPTO Granted Patents = 429


Trademarks = 21

Forward Citations = 4,536

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170 inventors (with patents filed for the assignee):

goldMedal Patrick M Quinlan (72 out of 72 patents)

silverMedal Derek Redmore (57 out of 57 patents)

bronzeMedal Bernardus A Oude Alink (53 out of 56 patents)

4.  Neil E Thompson (44 out of 44 patents)

5.  Benjamin T Outlaw (27 out of 27 patents)

6.  Michael I Naiman (24 out of 24 patents)

7.  Rudolf S Buriks (22 out of 22 patents)

8.  Thomas J Bellos (18 out of 21 patents)

9.  John A Schield (14 out of 29 patents)

10.  David B Guthrie (12 out of 12 patents)

11.  William J Cheng (12 out of 12 patents)

12.  Jerry J Weers (11 out of 72 patents)

13.  Richard Martin (10 out of 54 patents)

14.  Frederick T Welge (10 out of 10 patents)

15.  Robert G Asperger (9 out of 9 patents)


Core Competencies:
Biodegradable Corrosion Inhibitors
Anti-Static Additives
Water Soluble Organics Removal
Corrosion Inhibition
Hydrogen Sulfide Scavengers
Asphaltene Removal
Demulsifier Compositions
Scale Inhibition
Vinyl Phenol Polymers
Polyimide Quaternary Salts
Repulpable Adhesives
Foam Control

429 patents:

1. 5785895 - Biodegradable corrosion inhibitors of low toxicity (1998-07-28),
2. 5672183 - Anti-static additives for hydrocarbons (1997-09-30),
3. 5637223 - Method of removing water soluble organics from oil process water (1997-06-10),
4. 5634971 - Process for dispersing pigments with polyoxyalkylated ethers (1997-06-03),
5. 5582792 - Corrosion inhibition by ethoxylated fatty amine salts of maleated (1996-12-10),
6. 5567213 - Use of olefinic imines to scavenge sulfur species (1996-10-22),
7. 5567212 - Use of olefinic imines to scavenge sulfur species (1996-10-22),
8. 5538723 - Method for suppressing the viscosity of bioinsecticide slurries and (1996-07-23),
9. 5504063 - Asphaltene removal composition and method (1996-04-02),
10. 5480860 - Methods for reducing sulfides in sewage gas (1996-01-02),
11. 5456767 - Corrosion inhibition with bilayer-forming surfactants (1995-10-10),
12. 5441998 - Repulpable hot melt adhesives (1995-08-15),
13. 5440059 - Clay-catalyzed synthesis of aryl-substituted fatty acids and fatty (1995-08-08),
14. 5439592 - Method for removal of water soluble organics from oil process water (1995-08-08),
15. 5436287 - Repulpable laminating adhesive containing an ethylene vinyl acetate (1995-07-25),
Petrolite Corporation is a leading provider of oilfield and industrial chemicals, offering a wide range of specialty additives and technologies. With global operations and a focus on innovation, Petrolite helps optimize production processes and enhance chemical performance for the oil and gas industry. Our products and services are designed to increase efficiency, reduce operational costs, and ensure compliance with environmental regulations. Visit our website to learn more about our comprehensive solutions and industry expertise.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

429 Patents

#9 in St. Louis, MO

#12 in Missouri

#1,063 in US

#2,136 in the World

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St. Louis, MO, United States of America

Petrolite Corporation

Forward Citations = 4,536

170 inventors:

goldMedal Patrick M Quinlan (72 out of 72 patents)

silverMedal Derek Redmore (57 out of 57 patents)

bronzeMedal Bernardus A Oude Alink (53 out of 56 patents)

4.  Neil E Thompson (44 out of 44 patents)

5.  Benjamin T Outlaw (27 out of 27 patents)

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