Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6320773 | Transformer/rectifier for aircraft ground power unit | Jerome John Sirotnik, David Wayne Leadingham, Daniel Lee Downey | 2001-11-20 |
| 4728817 | Power transistor drive circuit | Ralph D. Jessee | 1988-03-01 |
| 4434358 | Aircraft window heat controller with switched impedances | Otto L. Apfelbeck | 1984-02-28 |
| 4357524 | Electrical heater controller for aircraft window heat control | Otto L. Apfelbeck | 1982-11-02 |
| 4342076 | Transistor turn off current sensing circuit | Mark A. Rosswurm | 1982-07-27 |