Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7889115 | System and method for tracking and identifying aircraft and ground equipment | Dan J. Clingman, Ted D. Whitley, Jack Hugo Thiesen, Glenn S. Bushnell | 2011-02-15 |
| 4423334 | Wave motion electric generator | Robert J. Winkler | 1983-12-27 |
| 4326013 | Energy system | Mark Madden | 1982-04-20 |
| 4309874 | Fuel cell powered irrigation system | Mark Madden | 1982-01-12 |
| 4191207 | Irrigation pipe control system | Mark Madden | 1980-03-04 |
| 4186880 | Program control for center post irrigation system | Mark Madden | 1980-02-05 |