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For the Inventor, By the Inventor

Franklin Park, IL, United States of America

Duo-fast Corporation


USPTO Granted Patents = 52

Trademarks = 3

Forward Citations = 5,304

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35 inventors (with patents filed for the assignee):

goldMedal Ronald Austin (8 out of 8 patents)

silverMedal Raymond F Novak (8 out of 8 patents)

bronzeMedal Bernard W Geist (7 out of 7 patents)

4.  Richard H Doyle (6 out of 7 patents)

5.  James E Kerrigan (5 out of 5 patents)

6.  John R Nasiatka (4 out of 4 patents)

7.  Allen R Obergfell (4 out of 4 patents)

8.  Frank R Potucek (4 out of 4 patents)

9.  Edmund Frank (4 out of 4 patents)

10.  Robert J Meyer (3 out of 3 patents)

11.  Raimonds Grikis (3 out of 3 patents)

12.  Elmer J Thorsen, Jr (2 out of 2 patents)

13.  Ernest F Schaudek (2 out of 2 patents)

14.  Masayuki Fujise (1 out of 5 patents)

15.  Yuichi Shirasaki (1 out of 7 patents)


Core Competencies:
Fastener Driving Tool
Clinch Staples
Safety Mechanism
Furniture Clip
Core Alignment System
Pneumatic Tools
Automated Frame Assembly
Electric Nailer
Fastener Feeding Apparatus
Collated Fastener Strip
Compression Tacker
Corrosion Resistant Fasteners

52 patents:

1. D378345 - Hand grip for fastener driving tool (1997-03-11),
2. 5360305 - Clinch staples and method of manufacturing and applying clinch staples (1994-11-01),
3. 5273200 - Fastener driving tool (1993-12-28),
4. 5174485 - Fastener driving tool (1992-12-29),
5. 5098004 - Fastener driving tool (1992-03-24),
6. 5094380 - Guide for fastener driving tool (1992-03-10),
7. 5080273 - Trigger valve and safety mechanism for fastener driving tool (1992-01-14),
8. 5069379 - Fastener driving tool (1991-12-03),
9. 5054678 - Furniture clip/tool (1991-10-08),
10. 5052607 - Fastener driving tool with pointing device (1991-10-01),
11. 5035354 - Safety dual-interlock system for fastener driving tool (1991-07-30),
12. 5035040 - Hog ring fastener, tool and methods (1991-07-30),
13. 5025968 - Furniture tool (1991-06-25),
14. 4928868 - Fastener driving tool (1990-05-29),
15. 4911522 - Core alignment system for optical fibers (1990-03-27),
Duo-Fast Corporation is a leading manufacturer of industrial tools and fastening solutions. With over 75 years of experience, Duo-Fast has established itself as a trusted name in the construction and manufacturing industries. Their product range includes pneumatic nailers, staplers, and fasteners, known for their durability and high-performance capabilities. Duo-Fast strives to provide innovative solutions that enhance productivity and efficiency for their customers. For more information, visit their website.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

52 Patents

#9 in Franklin Park, IL

#372 in Illinois

#6,537 in US

#13,143 in the World

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Franklin Park, IL, United States of America

Duo-fast Corporation

Forward Citations = 5,304

35 inventors:

goldMedal Ronald Austin (8 out of 8 patents)

silverMedal Raymond F Novak (8 out of 8 patents)

bronzeMedal Bernard W Geist (7 out of 7 patents)

4.  Richard H Doyle (6 out of 7 patents)

5.  James E Kerrigan (5 out of 5 patents)

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