For the Inventor, By the Inventor

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Williamsburg, VA, United States of America

Rampart Packaging Inc.

USPTO Granted Patents = 17

Forward Citations = 317

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9 inventors (with patents filed for the assignee):

Paul M Coffman (4 out of 9 patents)

David E Ofstein (3 out of 8 patents)

John S Thomas, Jr (3 out of 6 patents)

4. R James Kersting (2 out of 2 patents)

5. Norman E Peck (1 out of 1 patent)

6. Kent H French (1 out of 1 patent)

7. Michael O'Herron (1 out of 1 patent)

8. Roy L Smith (1 out of 1 patent)

9. Charles R Miller (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 5034074 - Method for formation of a peelable lid (1991-07-23),

2. 5032213 - Thermal lid sealing method and apparatus (1991-07-16),

3. 5003002 - Blends of amorphous nylon and ethylene vinyl alcohol copolymers and (1991-03-26),

4. 4999254 - Increased regrind use in coextruded structures (1991-03-12),

5. D313556 - Container (1991-01-08),

6. 4964205 - Method for making screw cap jar (1990-10-23),

7. 4948441 - Method and apparatus for fabrication of an openable container lid (1990-08-14),

8. 4894291 - Increased regrind usage in coextruded structures (1990-01-16),

9. 4883633 - Process and apparatus for production of articles with selectively (1989-11-28),

10. 4883190 - Thermoplastic bellows lid for thermoplastic containers (1989-11-28),

11. 4844270 - Screw cap jar (1989-07-04),

12. 4830559 - Self lubricating nut (1989-05-16),

13. 4810457 - Method of blow molding on thermoforming a plastic hardskin/softcore (1989-03-07),

14. 4798750 - Retortable containers with exterior modified polystyrene cap layer (1989-01-17),

15. 4790972 - Method for stacking billets and thermoforming (1988-12-13),

Rampart Packaging Inc. is a leading provider of packaging solutions for a wide range of industries. With over 20 years of experience, we offer customized packaging options to meet our clients' specific needs and requirements. Our team of experts is committed to providing high-quality products and exceptional customer service to ensure customer satisfaction. Contact us today to learn more about how Rampart Packaging can help your business succeed.

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

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USPTO Data Jan 1 1976 - Sep 22 2026

17 Patents

#4 in Williamsburg, VA

#315 in Virginia

#18,854 in US

#35,837 in the World

Williamsburg, VA, United States of America

Rampart Packaging Inc.

Forward Citations = 317

9 inventors:

Paul M Coffman (4 out of 9 patents)

David E Ofstein (3 out of 8 patents)

John S Thomas, Jr (3 out of 6 patents)

4. R James Kersting (2 out of 2 patents)

5. Norman E Peck (1 out of 1 patent)

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