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Houston, TX, United States of America

Pennzoil Products Company

USPTO Granted Patents = 47

Trademarks = 24

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)

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 9 2025

47 Patents

#118 in Houston, TX

#401 in Texas

#7,182 in US

#14,382 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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