Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7933689 | Method for controlling at least one load connected to a primary and a backup power supply | John David Smith | 2011-04-26 |
| 7720576 | Intelligent auxiliary power supply system with current and temperature monitoring capabilities | John David Smith | 2010-05-18 |
| 7389159 | Control algorithm for backup power system | John David Smith | 2008-06-17 |
| 4890391 | Commercial electrical alignment box tool | — | 1990-01-02 |
| 4397426 | Shoe bracket assembly for vertical shaft impact crushing machines | Kenneth D. Warren | 1983-08-09 |