Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5420487 | Control system for a motor | — | 1995-05-30 |
| 5402054 | Variable speed AC drive control | — | 1995-03-28 |
| 5225754 | Control system for a motor | — | 1993-07-06 |
| 5198711 | Electric motor for providing lifting force | — | 1993-03-30 |
| 5191520 | Power supply system | — | 1993-03-02 |
| 4995054 | Data transmission using switched resonance | — | 1991-02-19 |
| 4739969 | Lift sheave | Maxwell T. Jones | 1988-04-26 |