Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040676 | Passive electronic damping for step motor | Jack Nordquist, Mark J. Calahan, Christopher Botka | 2000-03-21 |
| 5847535 | Active electronic damping for step motor | Jack Nordquist, Mark C. Calahan, Christopher Botka | 1998-12-08 |