logo

For the Inventor, By the Inventor

Houston, TX, United States of America

Pennzoil-Quaker State Company


USPTO Granted Patents = 15



Trademarks = 79

Forward Citations = 156

Loading Chart...
Loading Chart...

23 inventors (with patents filed for the assignee):

goldMedal I-Ching Chiu (6 out of 13 patents)

silverMedal James C W Chien (4 out of 8 patents)

bronzeMedal Jiafu Fang (3 out of 14 patents)

4.  William J Heilman (3 out of 43 patents)

5.  Troy H Scriven (3 out of 4 patents)

6.  Michael W Howe (2 out of 4 patents)

7.  Dewey P Szemenyei (2 out of 3 patents)

8.  William Heilmann (2 out of 2 patents)

9.  Wei Song (1 out of 10 patents)

10.  Selda Gunsel (1 out of 7 patents)

11.  Arif M Sitabkhan (1 out of 2 patents)

12.  Bart L Ivic (1 out of 2 patents)

13.  Clifford Venier (1 out of 3 patents)

14.  Michael Schmeida (1 out of 1 patent)

15.  Brian Sokol (1 out of 1 patent)


15 patents:

1. D491468 - Bottle (2004-06-16),
2. 6667284 - Lubricant for magnetic recording medium and use thereof (2003-12-23),
3. 6605654 - Tire sealing and inflating composition and method of use (2003-08-12),
4. 6602835 - Composition and method for cleaning, protecting and restoring vehicular surfaces (2003-08-05),
5. 6586646 - Vinylidene-containing polymers and uses thereof (2003-07-01),
6. 6492436 - Tire sealer and inflating composition and method of use (2002-12-10),
7. 6489393 - Surface tinting composition and method of use (2002-12-03),
8. 6417416 - Ethylene-alpha-olefin polymers, processes and uses (2002-07-09),
9. 6388148 - Ethylene-alpha-olefin polymers, processes and uses (2002-05-14),
10. 6353143 - Fuel composition for gasoline powered vehicle and method (2002-03-05),
11. 6262324 - Ethylene-alpha-olefin polymers, processes and uses (2001-07-17),
12. 6217745 - Method for monitoring agents in hydrocarbon fluids (2001-04-17),
13. 6172014 - Method of lubricating compression cylinders used in the manufacture of high-pressure polyethylene (2001-01-09),
14. 6124513 - Ethylene-alpha-olefin polymers, processes and uses (2000-09-26),
15. D422919 - Bottle (2000-04-18),
Pennzoil-Quaker State Company is a leading manufacturer and distributor of motor oil and other automotive products. With a long history in the industry, the company is known for its high-quality products and commitment to innovation. Their brands, including Pennzoil and Quaker State, are trusted by consumers and professionals alike for their superior performance and protection for engines. Visit their website for more information on their products and services.
This text is generated by artificial intelligence and may not be accurate.

logo

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

15 Patents

#340 in Houston, TX

#1,272 in Texas

#20,435 in US

#38,719 in the World

...
Houston, TX, United States of America

Pennzoil-Quaker State Company

Forward Citations = 156

23 inventors:

goldMedal I-Ching Chiu (6 out of 13 patents)

silverMedal James C W Chien (4 out of 8 patents)

bronzeMedal Jiafu Fang (3 out of 14 patents)

4.  William J Heilman (3 out of 43 patents)

5.  Troy H Scriven (3 out of 4 patents)

Please report any incorrect information to support@idiyas.com
Loading…