Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5760495 | Inverter/charger circuit for uninterruptible power supplies | — | 1998-06-02 |
| 5739595 | Apparatus and methods for generating an AC power signal for cable tv distribution systems | Brian M. Kennedy, Thomas S. Osterman | 1998-04-14 |
| 5642002 | Apparatus and methods for generating uninterruptible AC power signals | Donald C. Sorenson, Gregory Scott Zediker, Thomas S. Osterman | 1997-06-24 |
| 5638244 | Apparatus and methods for generating uninterruptible AC power signals | Donald C. Sorenson, Gregory Scott Zediker, Thomas S. Osterman | 1997-06-10 |