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Nicholasville, KY, United States of America

Railpower, LLC

USPTO Granted Patents = 9

% Expired Patents = 100.0

CIPO Patents = 5

Forward Citations = 177

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12 inventors (with patents filed for the assignee):

Frank Wegner Donnelly (6 out of 40 patents)

Andrew Colin Tarnow (5 out of 8 patents)

John David Watson (4 out of 58 patents)

4. Ronald B Bailey (2 out of 2 patents)

5. Bruce Wolff (2 out of 4 patents)

6. James Arthur Pike (1 out of 23 patents)

7. Serge Mai (1 out of 2 patents)

8. Adam Carr Bennett (1 out of 1 patent)

9. Edward Michael Murphy (1 out of 1 patent)

10. Kris Redinger (1 out of 1 patent)

11. Bruce E Wolff (1 out of 2 patents)

12. Brian L Jarrett (1 out of 1 patent)

13. James E Maier (0 patent)

14. Franck Wegner Donnelly (0 patent)

9 patents: Sort by Forward Citations

1. 9102309 - System and method for detecting wheel slip and skid in a locomotive (2015-08-11),

2. 8941956 - Switching ground tether circuit (2015-01-27),

3. 8237384 - Dynamic braking circuit for a hybrid locomotive (2012-08-07),

4. 8220572 - Multi-power source locomotive selection (2012-07-17),

5. 7944081 - Multi-power source locomotive control method and system (2011-05-17),

6. 7940016 - Regenerative braking methods for a hybrid locomotive (2011-05-10),

7. 7906862 - Multiple prime power source locomotive control (2011-03-15),

8. 7667347 - Multi-power source locomotive control method and system (2010-02-23),

9. 7661370 - Design of a large low maintenance battery pack for a hybrid locomotive (2010-02-16),

Railpower, LLC is a leading provider of innovative railroad products and services. With a focus on sustainability and efficiency, Railpower offers emissions-reducing locomotives and cutting-edge technology solutions for the rail industry. Their products help decrease fuel consumption and improve overall performance, making them a trusted partner for railroad companies worldwide.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

9 Patents

#6 in Nicholasville, KY

#163 in Kentucky

#32,549 in US

Nicholasville, KY, United States of America

Railpower, LLC

Forward Citations = 177

12 inventors:

Frank Wegner Donnelly (6 out of 40 patents)

Andrew Colin Tarnow (5 out of 8 patents)

John David Watson (4 out of 58 patents)

4. Ronald B Bailey (2 out of 2 patents)

5. Bruce Wolff (2 out of 4 patents)

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