Quaker State Investment Corporation

Calculating rank

USPTO Granted Patents = 8

Trademarks = 3

Forward Citations = 132

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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 53 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),

Company Overview

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.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

8 Patents

#572 in Houston, TX

#2,281 in Texas

#35,954 in US

Houston, TX, United States of America