Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118198 | Electric motor with ice out protection | Robert K. Hollenbeck, Gregory A. Thompson | 2000-09-12 |
| 5986379 | Motor with external rotor | Robert K. Hollenbeck, David M. Erdman, Dennis P. Bobay, Harold B. Harms, David T. Molnar | 1999-11-16 |