CIPO Patents = 3

Forward Citations = 238

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5 inventors (with patents filed for the assignee):

William J Platt (16 out of 39 patents)

Thomas E Rose (4 out of 4 patents)

Daniel C Ziegler (1 out of 7 patents)

4. Eugene E Brady (1 out of 1 patent)

5. Paul C Gillenwater (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 5390456 - Decorative suspended ceiling (1995-02-21),

2. 5279033 - Method of making a beam for a decorative suspended ceiling (1994-01-18),

3. 5241798 - Decorative suspended ceiling (1993-09-07),

4. 5046294 - Perimeter clip (1991-09-10),

5. 4955134 - Method of forming a spring-like fire strip (1990-09-11),

6. 4926607 - Compression leg (1990-05-22),

7. 4916877 - Fire strip construction (1990-04-17),

8. 4912894 - Interlocking cross tee (1990-04-03),

9. 4890428 - Partition clip (1990-01-02),

10. 4864791 - Fire strip (1989-09-12),

11. 4827681 - Interlocking cross tee (1989-05-09),

12. 4794745 - Tier drop grid system (1989-01-03),

13. 4785603 - Interlocking cross tee (1988-11-22),

14. 4727703 - Suspended ceiling grid structure (1988-03-01),

15. 4713919 - Laser welded ceiling grid members (1987-12-22),

Company Overview

National Rolling Mills, Inc. is a prominent manufacturer specializing in the production of high-quality rolling mill equipment and related machinery. Based in Frazer, Pennsylvania, the company focuses on delivering innovative solutions for the metalworking industry, particularly in the areas of steel and aluminum processing. With a commitment to engineering excellence, National Rolling Mills serves a diverse clientele, providing tailored machinery that enhances operational efficiency and product quality in various manufacturing applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

16 Patents

#2 in Frazer, PA

#721 in Pennsylvania

#19,935 in US

#37,868 in the World

Frazer, PA, United States of America

National Rolling Mills, Inc.

Forward Citations = 238

5 inventors:

William J Platt (16 out of 39 patents)

Thomas E Rose (4 out of 4 patents)

Daniel C Ziegler (1 out of 7 patents)

4. Eugene E Brady (1 out of 1 patent)

5. Paul C Gillenwater (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: National Rolling Mills, Inc.. Retrieved from https://idiyas.com/company/national-rolling-mills

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]

3 patents (CIPO):

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]