For the Inventor, By the Inventor

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Cross Plains, WI, United States of America

Roto Zip Tool Corporation

USPTO Granted Patents = 12

Trademarks = 1

Forward Citations = 520

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11 inventors (with patents filed for the assignee):

Robert K Kopras (9 out of 17 patents)

Scott Peter Adler (7 out of 15 patents)

Cory R Boudreau (5 out of 61 patents)

4. Ryan W Rindy (3 out of 18 patents)

5. Daniel Bullis (3 out of 9 patents)

6. Jason R Kopras (2 out of 6 patents)

7. Rick W Walker (1 out of 17 patents)

8. Douglas E Seals (1 out of 9 patents)

9. Larry Gunseor (1 out of 5 patents)

10. Vincent Haley (1 out of 4 patents)

11. Jeffrey R Walker (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. D473770 - Power tool with automatic locking depth guide (2003-04-30),

2. D466775 - Flexible shaft cutting tool (2002-12-11),

3. D465712 - Power tool with automatic locking depth guide (2002-11-20),

4. D465393 - Automatic locking depth guide (2002-11-13),

5. 6443676 - Automatic locking depth guide for cutting tools and the like (2002-09-03),

6. 6443675 - Hand-held power tool (2002-09-03),

7. D439484 - Spiral cutting tool with handle (2001-03-28),

8. D439122 - Spiral cutting tool (2001-03-21),

9. 6048260 - Angle attachment for power tool (2000-04-11),

10. 5902080 - Spiral cutting tool with detachable battery pack (1999-05-11),

11. 5323823 - Wood router bit (1994-06-28),

12. 5143490 - Bit for cutting sheetrock (1992-09-01),

Roto Zip Tool Corporation specializes in the development and manufacturing of innovative cutting tools and accessories designed for various applications in construction and home improvement. Known for its precision and efficiency, the company focuses on enhancing user experience through advanced technology in power tools. Based in Cross Plains, Wisconsin, Roto Zip is committed to providing solutions that cater to both professional contractors and DIY enthusiasts, ensuring high-quality performance and reliability in every product.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#2 in Cross Plains, WI

#573 in Wisconsin

#25,526 in US

#48,090 in the World

Cross Plains, WI, United States of America

Roto Zip Tool Corporation

Forward Citations = 520

11 inventors:

Robert K Kopras (9 out of 17 patents)

Scott Peter Adler (7 out of 15 patents)

Cory R Boudreau (5 out of 61 patents)

4. Ryan W Rindy (3 out of 18 patents)

5. Daniel Bullis (3 out of 9 patents)

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