% Expired Patents = 16.7

Trademarks = 1

Forward Citations = 62

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10 inventors (with patents filed for the assignee):

Robert P Marquis (3 out of 3 patents)

Peter Weileder (2 out of 2 patents)

Dieter F Lay (1 out of 27 patents)

4. Richard A Gross (1 out of 51 patents)

5. Robert W Fox (1 out of 7 patents)

6. Andrew T Billiu (1 out of 4 patents)

7. John Schultz (1 out of 4 patents)

8. Julie Brown (1 out of 3 patents)

9. Amsey Buehler (1 out of 8 patents)

10. Marcus C Phillips (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 8097197 - Method for manufacturing a sealable container closure (2012-01-17),

2. 6386624 - Front end assembly for an automotive vehicle (2002-05-14),

3. 4454734 - Rigid and compressible dye tubes (1984-06-19),

4. 4359194 - Two piece mandril for quick mounting and release of cones, used in (1982-11-16),

5. 4331305 - Rigid and compressible dye tubes (1982-05-25),

6. D256164 - Door canopy (1980-07-29),

Company Overview

Plastech, Inc. is a leading manufacturer of high-quality plastic products for various industries. With state-of-the-art facilities and a dedicated team of professionals, we specialize in custom injection molding, extrusion, and assembly services. Our commitment to quality, innovation, and customer satisfaction sets us apart in the industry. Contact us today to learn more about how we can help bring your plastic product ideas to life.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#9 in Williamsburg, VA

#802 in Virginia

#45,007 in US

Williamsburg, VA, United States of America

Plastech, Inc.

Forward Citations = 62

10 inventors:

Robert P Marquis (3 out of 3 patents)

Peter Weileder (2 out of 2 patents)

Dieter F Lay (1 out of 27 patents)

4. Richard A Gross (1 out of 51 patents)

5. Robert W Fox (1 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Plastech, Inc.. Retrieved from https://idiyas.com/company/plastech

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]