Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6931883 | Two stage indirect evaporative cooling system | Brian Eric Lee, Duncan Callaway | 2005-08-23 |
| 6845629 | Vertical counterflow evaporative cooler | Brian Eric Lee, Duncan Callaway | 2005-01-25 |