Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12352286 | Truck cooler fan | Douglas R. Greulich, Eric A. Trofatter | 2025-07-08 |
| 11965523 | Truck cooler fan | Douglas R. Greulich, Eric A. Trofatter | 2024-04-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12352286 | Truck cooler fan | Douglas R. Greulich, Eric A. Trofatter | 2025-07-08 |
| 11965523 | Truck cooler fan | Douglas R. Greulich, Eric A. Trofatter | 2024-04-23 |