For the Inventor, By the Inventor

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Houston, TX, United States of America

Conoco Specialty Products Inc.

USPTO Granted Patents = 30

Forward Citations = 511

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26 inventors (with patents filed for the assignee):

Noel Carroll (6 out of 6 patents)

Charles M Kalnins (6 out of 6 patents)

Charles M Kalnins (5 out of 5 patents)

4. Mark F Schubert (4 out of 6 patents)

5. David A Hadfield (3 out of 3 patents)

6. Mark I Grey (2 out of 2 patents)

7. Phillip C Tuckett (2 out of 2 patents)

8. Martin T Thew (2 out of 13 patents)

9. Stephen T McCoy (2 out of 6 patents)

10. Kevin J O'Brien (2 out of 2 patents)

11. Pete A Thompson (2 out of 2 patents)

12. Bill E Bowers (1 out of 2 patents)

13. Soren R Hansen (1 out of 1 patent)

14. David A Flanigan (1 out of 7 patents)

15. Michael C Mai (1 out of 1 patent)

Core Competencies:

Oil-Water Separation

Hydrocyclones

Liquid Separator

Particle Disintegration

Drilling Fluids

Multi-Phase Mixture

Separation System

Floatation Device

Controlled Split Ratio

High Efficiency

Cyclone Separator

Degassing Separators

30 patents: Sort by Forward Citations

1. 5514266 - Oil-water separation apparatus employing a floating skimmer, a (1996-05-07),

2. 5498346 - Hydrocyclones for oil spill cleanup having a controlled split ratio (1996-03-12),

3. 5366641 - Hydrocyclones for oil spill cleanup with oil slug monitor (1994-11-22),

4. 5350525 - System and process for hydrocyclone separation of particulate solids and (1994-09-27),

5. 5336410 - Three chamber vessel for hydrocyclone separator (1994-08-09),

6. 5302294 - Separation system employing degassing separators and hydroglyclones (1994-04-12),

7. 5194150 - Three chamber vessel for hydrocyclone separator (1993-03-16),

8. 5151079 - Method and apparatus for reduction of particle disintegration (1992-09-29),

9. 5129468 - Method and apparatus for separating drilling and production fluids (1992-07-14),

10. 5110471 - High efficiency liquid/liquid hydrocyclone (1992-05-05),

11. 5108608 - Cyclone separator with multiple outlets and recycling line means (1992-04-28),

12. 5100552 - Cyclone separator with enlarged underflow section (1992-03-31),

13. 5093006 - Liquid separator (1992-03-03),

14. 5071557 - Liquid/liquid hydrocyclone (1991-12-10),

15. 5071556 - Hydrocyclone having a high efficiency area to volume ratio (1991-12-10),

Conoco Specialty Products Inc., based in Houston, Texas, specializes in the development and manufacturing of high-performance specialty chemicals and lubricants. The company focuses on providing innovative solutions for various industries, including automotive, industrial, and consumer markets. With a commitment to research and technology, Conoco Specialty Products leverages advanced formulations to enhance product performance and sustainability, catering to a diverse global clientele.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Conoco Specialty Products Inc.

30 Patents

#171 in Houston, TX

#621 in Texas

#11,249 in US

#21,840 in the World

Houston, TX, United States of America

Conoco Specialty Products Inc.

Forward Citations = 511

26 inventors:

Noel Carroll (6 out of 6 patents)

Charles M Kalnins (6 out of 6 patents)

Charles M Kalnins (5 out of 5 patents)

4. Mark F Schubert (4 out of 6 patents)

5. David A Hadfield (3 out of 3 patents)

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