Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456173 | Energy loss detection system | Mark D. Driscoll, John E. Sorenson, Robert T. Kirchner, David A. Keech | 1984-06-26 |
| 4305548 | Energy loss detection system | Mark D. Driscoll, John E. Sorenson, Robert T. Kirchner, David A. Keech | 1981-12-15 |