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Houston, TX, United States of America

Pennzoil Products Company

USPTO Granted Patents = 47

Trademarks = 23

Forward Citations = 749

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33 inventors (with patents filed for the assignee):

William J Heilman (11 out of 43 patents)

Clifford G Venier (9 out of 9 patents)

Edward W Casserly (7 out of 7 patents)

4. David S Morrison (5 out of 9 patents)

5. I-Ching Chiu (4 out of 13 patents)

6. Brent R Dohner (4 out of 5 patents)

7. Bruce E Wilburn (4 out of 4 patents)

8. Paul J DesLauriers (4 out of 4 patents)

9. Selda Gunsel (3 out of 7 patents)

10. Jiafu Fang (3 out of 3 patents)

11. Frances Ellen Lockwood (2 out of 40 patents)

12. D V Gupta (2 out of 12 patents)

13. Alexandra B Shortt (2 out of 7 patents)

14. Randall R Hendrix (2 out of 3 patents)

15. Richard L Johnson (2 out of 2 patents)

Core Competencies:

Hydrocarbon Gels

Liquid Crystal Lubricants

Pest Control Gels

Synthetic Lubricants

Tire Sealer Compositions

Electrochemical Sensors

Biodegradable Lubricants

Corrosion Inhibition

Pour Point Depressants

Antiwear Additives

Surface Treatment Compositions

Hydraulic Fluids

47 patents: Sort by Forward Citations

1. 6340467 - Solid and semi-solid hydrocarbon gels and uses thereof (2002-01-22),

2. 6130190 - Liquid crystal and surfactant containing lubricant compositions (2000-10-10),

3. 6074994 - Non-aqueous solvent-free lamellar liquid crystalline lubricants (2000-06-13),

4. 6066329 - Transparent gel candles (2000-05-23),

5. 5879694 - Transparent gel candles (1999-03-09),

6. 5871765 - Non-aqueous controlled release pest and air care gel composition (1999-02-16),

7. 5728907 - Tetraalkylmethanes as synthetic lubricants (1998-03-17),

8. 5705604 - Tire sealer and inflator compositions (1998-01-06),

9. 5705175 - Non-aqueous controlled release insect repellent and insecticide gels (1998-01-06),

10. 5672727 - Dithiocarbamoyl diols and borate esters thereof for use in lubricant (1997-09-30),

11. 5618912 - Tire sealer and inflator compositions (1997-04-08),

12. 5560853 - Dithiocarbamoyl diols and borate esters thereof for use in lubricant (1996-10-01),

13. 5518590 - Electrochemical sensors for motor oils and other lubricants (1996-05-21),

14. 5436379 - Base oil for shear stable multi-viscosity lubricants and lubricants (1995-07-25),

15. 5412007 - Stable petroleum resin-water emulsion (1995-05-02),

Pennzoil Products Company is an American manufacturer and marketer of automotive lubricants and oils. Founded in 1913, the company offers a wide range of products for both consumer and commercial use. Pennzoil is known for its high-quality motor oils and innovative technologies that help to improve engine performance and provide superior protection. With a strong commitment to quality, reliability, and sustainability, Pennzoil has become a trusted brand among car enthusiasts and professional mechanics.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

47 Patents

#118 in Houston, TX

#401 in Texas

#7,186 in US

#14,402 in the World

Houston, TX, United States of America

Pennzoil Products Company

Forward Citations = 749

33 inventors:

William J Heilman (11 out of 43 patents)

Clifford G Venier (9 out of 9 patents)

Edward W Casserly (7 out of 7 patents)

4. David S Morrison (5 out of 9 patents)

5. I-Ching Chiu (4 out of 13 patents)

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