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Trademarks = 5

Forward Citations = 131

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10 inventors (with patents filed for the assignee):

Laurie J Stevens (3 out of 3 patents)

Scott Paul McManigal (2 out of 2 patents)

John Charles Cook (2 out of 4 patents)

4. Roger Kim (2 out of 2 patents)

5. Edward David Mitchell (2 out of 2 patents)

6. Stuart Karten (1 out of 52 patents)

7. Richard Landy (1 out of 4 patents)

8. Eric W Olson (1 out of 22 patents)

9. Paul Trotman Kirley (1 out of 19 patents)

10. Joe S Holland (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 6289968 - Foldable vehicle sunshade (2001-09-18),

2. D447455 - Steering wheel cover (2001-09-05),

3. D436068 - Steering wheel cover (2001-01-10),

4. 6135191 - Collapsible vehicle sun shade (2000-10-24),

5. D429671 - Steering wheel cover (2000-08-22),

6. 6095230 - Vehicle sun shades (2000-08-01),

7. D414925 - Combined telephone and pager carrier (1999-10-12),

8. D410224 - Rooftop cargo bag (1999-05-25),

Quaker State Investment Corporation is a leading investment company specializing in strategic investments in real estate, technology, and energy sectors. With a strong track record of successful investments and a commitment to driving long-term growth, Quaker State is dedicated to creating value for its stakeholders and partners.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

8 Patents

#561 in Houston, TX

#2,210 in Texas

#34,831 in US

Houston, TX, United States of America

Quaker State Investment Corporation