For the Inventor, By the Inventor

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Detroit, MI, United States of America

Multifastener Corporation

USPTO Granted Patents = 85

Trademarks = 4

Forward Citations = 1,920

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29 inventors (with patents filed for the assignee):

Harold A Ladouceur (31 out of 51 patents)

Rudolph R Muller (18 out of 20 patents)

Rudolf R Muller (13 out of 25 patents)

4. Dale H Goodsmith (12 out of 14 patents)

5. Takao Takahashi (6 out of 67 patents)

6. Hiroshi Takehara (5 out of 5 patents)

7. Harold T Woods (4 out of 4 patents)

8. Jon M Smallegan (4 out of 13 patents)

9. John H Steward (4 out of 4 patents)

10. David W Sickels (3 out of 5 patents)

11. Heinrich Luckhardt, Deceased (3 out of 3 patents)

12. R M Muller (2 out of 2 patents)

13. Wolfgang Luckhardt (2 out of 2 patents)

14. Robert E Stewart (1 out of 34 patents)

15. Jiri Babej (1 out of 64 patents)

Core Competencies:

Fastener Installation

Self-Attaching Elements

Panel Assembly

Riveting Fasteners

Nut Retainers

Installation Die

Electrical Grounding

Quick Disconnect Coupler

Clinch Nut

Feeding Systems

Assembly Parts

Sealed Nut

85 patents: Sort by Forward Citations

1. 6263561 - Fastener retaining device for assembly parts (2001-07-24),

2. 6125524 - Rivetable element, assembly, method of assembly and riveting die (2000-10-03),

3. 5953813 - Fastener retaining device for assembly parts (1999-09-21),

4. 5868535 - Self-riveting fastening element (1999-02-09),

5. 5722139 - Installation apparatus for attaching a fastener to a panel (1998-03-03),

6. 5673472 - Method of coupling a fastener on a metal sheet and forming a molded part (1997-10-07),

7. 5644830 - Method of forming electrical connection (1997-07-08),

8. 5636426 - Holding device for fastening components (1997-06-10),

9. 5617652 - Fastener installation and method (1997-04-08),

10. 5566446 - Feed device for feeding of assembly parts (1996-10-22),

11. 5564873 - Self-attaching fastening element and method of attachment (1996-10-15),

12. 5560094 - Method of attaching a fastener to a panel (1996-10-01),

13. 5549430 - Self-attaching fastener and installation die (1996-08-27),

14. 5538377 - Enclosed nut retainer (1996-07-23),

15. 5533250 - Self-adjusting head for impacting fasteners into a panel (1996-07-09),

Multifastener Corporation is a global leader in providing fastening solutions for various industries. With over 50 years of experience, we specialize in manufacturing and distributing a wide range of fasteners, including screws, bolts, nuts, washers, and more. Our innovative products are trusted by leading companies worldwide for their reliability, durability, and precision. We pride ourselves on delivering exceptional service and value to our customers, ensuring their success in every project. Visit our website to explore our comprehensive product catalog and find the perfect fastening solution for your needs.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

85 Patents

#8 in Detroit, MI

#172 in Michigan

#4,372 in US

#8,942 in the World

Detroit, MI, United States of America

Multifastener Corporation

Forward Citations = 1,920

29 inventors:

Harold A Ladouceur (31 out of 51 patents)

Rudolph R Muller (18 out of 20 patents)

Rudolf R Muller (13 out of 25 patents)

4. Dale H Goodsmith (12 out of 14 patents)

5. Takao Takahashi (6 out of 67 patents)

Please report any incorrect information to [email protected]

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