% Expired Patents = 16.7

Trademarks = 1

Forward Citations = 102

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4 inventors (with patents filed for the assignee):

Paul Nadar (3 out of 3 patents)

Anthony V Diginosa (2 out of 3 patents)

Wesley D Mersman (1 out of 11 patents)

4. Steven J Gager (1 out of 2 patents)

6 patents: Sort by Forward Citations

1. 7445686 - Method for making cushioned product with integral cover (2008-11-04),

2. 6216392 - Sliding window seal (2001-04-17),

3. 6135510 - Egress window lock (2000-10-24),

4. D420895 - Wall clip (2000-02-22),

5. D394203 - Support bracket (1998-05-12),

6. D390732 - Shelf panel (1998-02-17),

Company Overview

Royal Plastics, L.l.c. is a leading manufacturer of high-quality plastic products. With over 20 years of experience in the industry, we specialize in custom plastic injection molding and extrusion services. Our state-of-the-art facility and skilled team ensure that we consistently deliver top-notch products to our clients. Customer satisfaction is our top priority, and we strive to exceed our clients' expectations with every project. Contact us today to see how we can help with your plastic manufacturing needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#3 in Hudsonville, MI

#1,526 in Michigan

#44,981 in US

Hudsonville, MI, United States of America

Royal Plastics, L.l.c.

Forward Citations = 102

4 inventors:

Paul Nadar (3 out of 3 patents)

Anthony V Diginosa (2 out of 3 patents)

Wesley D Mersman (1 out of 11 patents)

4. Steven J Gager (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Royal Plastics, L.l.c.. Retrieved from https://idiyas.com/company/royal-plastics

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]