Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5923100 | Apparatus for controlling a solar array power system | Frederick E. Lukens | 1999-07-13 |
| 4526044 | Load sensing probe | Donald F. Wilhelm | 1985-07-02 |
| 4412456 | Load sensing probe | Donald F. Wilhelm | 1983-11-01 |