Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6707344 | High efficiency, low noise frequency tripler and method | Robert S. Cargill | 2004-03-16 |
| 5235131 | RF shield fabrication method | Robert Thomas Hirsbrunner | 1993-08-10 |
| 4320939 | Optical filtering element including fluorescent material | — | 1982-03-23 |
| 4320940 | Optical filtering element | Timothy D. Ziebarth | 1982-03-23 |
| 4214511 | Break-away vent for grain storage bins | — | 1980-07-29 |