Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40257 | Compressor pulse width modulation | Roy J. Doepker, Mark Bass, James F. Fogt | 2008-04-22 |
| 6213731 | Compressor pulse width modulation | Roy J. Doepker, Mark Bass, James F. Fogt | 2001-04-10 |