Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468962 | Energy loss detection system | David A. Keech, Robert T. Kirchner, Nicholas M. Vander Wal, Mark D. Driscoll | 1984-09-04 |
| 4456173 | Energy loss detection system | David W. Miner, Mark D. Driscoll, Robert T. Kirchner, David A. Keech | 1984-06-26 |
| 4305548 | Energy loss detection system | David W. Miner, Mark D. Driscoll, Robert T. Kirchner, David A. Keech | 1981-12-15 |