Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253559 | Heating and cooling unit | Stephen W. Kinkel, Steven James Goettl | 2001-07-03 |
| 6223545 | Heating and cooling unit | Stephen W. Kinkel, Steven James Goettl | 2001-05-01 |
| 6202429 | Heating and cooling unit | Stephen W. Kinkel, Steven James Goettl | 2001-03-20 |
| 5970723 | Heating and cooling unit | Stephen W. Kinkel, Steven James Goettl | 1999-10-26 |
| 4828312 | Collapsible security storage apparatus for truck beds | Stephen W. Kinkel | 1989-05-09 |
| 4774030 | Evaporative cooler having efficient air transfer system | Steve Kinkel | 1988-09-27 |