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Waukesha, WI, United States of America

Generac Corporation

USPTO Granted Patents = 13

Trademarks = 3

Forward Citations = 244

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16 inventors (with patents filed for the assignee):

Robert D Kern (12 out of 42 patents)

Gerald C Ruehlow (11 out of 43 patents)

Graham W McLean (6 out of 13 patents)

4. Frank Wedel (5 out of 5 patents)

5. Mark J Sarder (3 out of 54 patents)

6. Herb Hoenisch (3 out of 7 patents)

7. Andrew B Robson (2 out of 3 patents)

8. Mark Kastner (2 out of 2 patents)

9. Dennis Cerney (2 out of 2 patents)

10. Richard J Gilpatrick (1 out of 39 patents)

11. Francis X Wedel (1 out of 12 patents)

12. Peter D Winnie (1 out of 6 patents)

13. Wes Sodemann (1 out of 5 patents)

14. Michael Wheeley (1 out of 1 patent)

15. Michael R Wheeley (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 5914551 - Electrical alternator (1999-06-22),

2. 5899176 - Apparatus for reducing engine fan noise (1999-05-04),

3. 5861604 - Arc welder and method providing use-enhancing features (1999-01-19),

4. 5831366 - Permanent magnet alternator (1998-11-03),

5. 5816102 - Engine-generator set with integral gear reduction (1998-10-06),

6. 5797540 - Method of making a power-transmitting coupling (1998-08-25),

7. 5718255 - Flow-responsive diverting valve (1998-02-17),

8. 5537025 - Battery charger/pre-exciter for engine-driven generator (1996-07-16),

9. 5504417 - Engine-driven generator (1996-04-02),

10. 5497735 - Internal combustion engine for portable power generating equipment (1996-03-12),

11. 5489811 - Permanent magnet alternator (1996-02-06),

12. 5376877 - Engine-driven generator (1994-12-27),

13. 5317999 - Internal combustion engine for portable power generating equipment (1994-06-07),

Generac Corporation is a leading manufacturer of energy solutions, specializing in backup power generation systems and renewable energy technologies. The company focuses on providing reliable power solutions for residential, commercial, and industrial applications, ensuring energy independence and resilience. With a strong emphasis on innovation, Generac develops advanced technologies in the power generation sector, including portable generators, home energy storage systems, and solar energy products, serving a diverse range of customers across North America and beyond.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

13 Patents

#28 in Waukesha, WI

#542 in Wisconsin

#23,815 in US

#44,988 in the World

Waukesha, WI, United States of America

Generac Corporation

Forward Citations = 244

16 inventors:

Robert D Kern (12 out of 42 patents)

Gerald C Ruehlow (11 out of 43 patents)

Graham W McLean (6 out of 13 patents)

4. Frank Wedel (5 out of 5 patents)

5. Mark J Sarder (3 out of 54 patents)

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