For the Inventor, By the Inventor

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Evanston, IL, United States of America

Tenneco Plastics Company

USPTO Granted Patents = 8

CIPO Patents = 1

Trademarks = 1

Forward Citations = 289

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17 inventors (with patents filed for the assignee):

Carl R Letendre (2 out of 2 patents)

Richard E Leone (2 out of 6 patents)

William P Belias (1 out of 21 patents)

4. Edward A Colombo (1 out of 27 patents)

5. Mark F Kozlowski (1 out of 3 patents)

6. Clifford H Patridge (1 out of 6 patents)

7. Edward M Bullard (1 out of 19 patents)

8. Darryl P Hansen (1 out of 8 patents)

9. Stephen L Goulette (1 out of 8 patents)

10. Lewis E Sable (1 out of 8 patents)

11. Richard A Wenzel (1 out of 7 patents)

12. Jill A Fritz (1 out of 4 patents)

13. Earle R Powell (1 out of 2 patents)

14. Larry D Fifer (1 out of 1 patent)

15. Robert E Hollenbeck (1 out of 3 patents)

8 patents: Sort by Forward Citations

1. 5683340 - Method of making easy open thermoplastic bag (1997-11-04),

2. 5669504 - Thermoplastic bag closure (1997-09-23),

3. 5645862 - Apparatus for the thermal densification of thermoplastic articles (1997-07-08),

4. 5607709 - Disposable microwavable food container (1997-03-04),

5. 5605646 - Containers for preparation and display of foods (1997-02-25),

6. 5573489 - Integral handled layflat thermoplastic bag (1996-11-12),

7. 5568979 - Closeable thermoplastic bag (1996-10-29),

8. 5515993 - Hinged semi-rigid container having wall stiffening means (1996-05-14),

Tenneco Plastics Company is a leading manufacturer of plastic packaging solutions for various industries. With a focus on innovation and sustainability, we offer a wide range of products including containers, bottles, and closures. Our commitment to quality and customer satisfaction sets us apart in the market.

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

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USPTO Data Jan 1 1976 - Jan 6 2026

8 Patents

#23 in Evanston, IL

#1,645 in Illinois

#34,944 in US

Evanston, IL, United States of America

Tenneco Plastics Company

Forward Citations = 289

17 inventors:

Carl R Letendre (2 out of 2 patents)

Richard E Leone (2 out of 6 patents)

William P Belias (1 out of 21 patents)

4. Edward A Colombo (1 out of 27 patents)

5. Mark F Kozlowski (1 out of 3 patents)

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