Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701388 | Combined heater and pump | Michael D. Steinhardt, Kenneth J. Sieth | 1997-12-23 |
| 5681025 | Motor operated butterfly valve with a multi-function seal | Weldon R. Kuhn, John A. Fiumefreddo, Kenneth J. Sieth | 1997-10-28 |
| 5548854 | Hydro-massage tub control system | John M. Bloemer, Thomas A. Bonnell, Alan D. Bengtson, Robert C. Giose, Mary J. Reid +2 more | 1996-08-27 |
| 4385270 | Temperature limited voltage regulator circuit | Kirk A. Sievers | 1983-05-24 |
| 4316134 | Fault indicating circuit for an automotive alternator battery charging system | Kirk A. Sievers | 1982-02-16 |