For the Inventor, By the Inventor

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Warrenton, OR, United States of America

Carruthers Equipment Co.

USPTO Granted Patents = 14

Forward Citations = 169

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14 inventors (with patents filed for the assignee):

Paul S Anderson (7 out of 16 patents)

Peter D Johnson (3 out of 3 patents)

Dennis Z Rush (3 out of 3 patents)

4. Garold L Wygal (3 out of 3 patents)

5. Robert A Zschoche (1 out of 4 patents)

6. John C Holbert (1 out of 17 patents)

7. Todd H Dowaliby (1 out of 1 patent)

8. Gary L Wygal (1 out of 1 patent)

9. John Niemann (1 out of 1 patent)

10. Michael Maki (1 out of 1 patent)

11. Ronald Law (1 out of 1 patent)

12. Forrest Stauss (1 out of 1 patent)

13. Eben H Carruthers (1 out of 3 patents)

14. Belvin L Graham (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 6711877 - Food product handling machine (2004-03-30),

2. 5984301 - Position adjustment conveyor (1999-11-16),

3. 5784937 - Three dimensional automatic food slicer (1998-07-28),

4. 5775986 - Cooked meat pulling apparatus (1998-07-07),

5. 5641055 - Conveyor belt (1997-06-24),

6. 5570562 - Multi-lane extended product transfer filling machine (1996-11-05),

7. 5425307 - Dicing machine (1995-06-20),

8. 5423250 - Automatic slicing machine (1995-06-13),

9. 5410954 - Three dimensional automatic food slicer (1995-05-02),

10. 5401156 - Machine for inserting a sized portion of a food product into a container (1995-03-28),

11. 5271304 - Automatic food slicing machine (1993-12-21),

12. 5041297 - Apparatus and method for canning food products (1991-08-20),

13. 4594066 - Pressure relief apparatus (1986-06-10),

14. 4446601 - Squid cleaning method and apparatus (1984-05-08),

Carruthers Equipment Co. is a leading provider of industrial equipment and machinery. With over 50 years of experience, we offer a wide range of high-quality products, including conveyors, slicing equipment, and automation solutions. Our team of experts is dedicated to providing innovative and reliable solutions to meet our customers' needs. Visit our website to learn more about our products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

14 Patents

#2 in Warrenton, OR

#217 in Oregon

#21,598 in US

#40,882 in the World

Warrenton, OR, United States of America

Carruthers Equipment Co.

Forward Citations = 169

14 inventors:

Paul S Anderson (7 out of 16 patents)

Peter D Johnson (3 out of 3 patents)

Dennis Z Rush (3 out of 3 patents)

4. Garold L Wygal (3 out of 3 patents)

5. Robert A Zschoche (1 out of 4 patents)

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