Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7908896 | Biometric deadbolt lock assembly | Timothy L. Olson, Robert A. Johannsen, Kenneth C. Blaisdell, John D. Tysver | 2011-03-22 |
| 6036444 | Protective air passing shield | Brian Barney, Gary L. Heiser, Gary E. Philipsen | 2000-03-14 |
| 5499674 | Modular cooling system sealing | John C. Bartz | 1996-03-19 |