For the Inventor, By the Inventor

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Grand Rapids, MI, United States of America

National Nail Corporation

USPTO Granted Patents = 79

EPO Patents = 5

Trademarks = 33

Forward Citations = 1,037

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11 inventors (with patents filed for the assignee):

Roger A Vandenberg (57 out of 57 patents)

Todd E A Schwartzkopf (25 out of 25 patents)

Roger C Bruins (13 out of 13 patents)

4. Roger A Vanden Berg (10 out of 10 patents)

5. Christopher Michael Colyn (8 out of 25 patents)

6. Ross Kooienga (4 out of 4 patents)

7. Todd Ea Schwartzkopf (3 out of 3 patents)

8. Gregory LeCompte (3 out of 3 patents)

9. Douglas F Hutchings (2 out of 2 patents)

10. Jon Tanis (1 out of 1 patent)

11. Glenn T Korhorn (1 out of 1 patent)

Core Competencies:

Self-Sealing Fastener

Hidden Fastener Unit

Fastener Installation Tool

Tension Fed Fastener

Fastener Positioning Device

Clip Starter Guide

Bladed Plug Cutting Tool

Sealed Fastener Cap

Hybrid Cordless Cap Tool

Screw Guide

Fastener Head

Collated Fasteners

79 patents: Sort by Forward Citations

1. 12467493 - Self-sealing fastener and related method of use (2025-11-11),

2. D1088855 - Screw (2025-08-19),

3. 12365065 - Clip starter guide and related method of use (2025-07-22),

4. 12343897 - Bladed plug cutting tool and related method of use (2025-07-01),

5. 12264483 - Hidden fastener unit and related method of use (2025-04-01),

6. 12234654 - Hidden fastener unit and related method of use (2025-02-25),

7. 12228165 - Sealed fastener cap and related method of manufacture (2025-02-18),

8. 12221794 - Hidden fastener unit and related method of use (2025-02-11),

9. 12129663 - Hidden fastener unit and related method of use (2024-10-29),

10. 12103146 - Tension fed fastener installation tool and related methods of use (2024-10-01),

11. D1035431 - Fastener head (2024-07-16),

12. 11999032 - Clip starter guide and related method of use (2024-06-04),

13. D1026636 - Fastener head (2024-05-14),

14. D1026605 - Tool bit (2024-05-14),

15. 11969863 - Screw guide and related method of use (2024-04-30),

National Nail Corporation is a leading manufacturer and distributor of innovative fastening products for various industries. With a wide range of high-quality nails, screws, and other fasteners, we provide top-notch solutions for construction, woodworking, roofing, and more. Our commitment to innovation, reliability, and customer satisfaction has made us a trusted name in the industry for over 50 years. Visit our website to explore our product range and find the perfect fastening solutions for your needs.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 20 2026

79 Patents

#7 in Grand Rapids, MI

#173 in Michigan

#4,541 in US

#9,342 in the World

Grand Rapids, MI, United States of America

National Nail Corporation

Forward Citations = 1,037

11 inventors:

Roger A Vandenberg (57 out of 57 patents)

Todd E A Schwartzkopf (25 out of 25 patents)

Roger C Bruins (13 out of 13 patents)

4. Roger A Vanden Berg (10 out of 10 patents)

5. Christopher Michael Colyn (8 out of 25 patents)

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