Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648635 | Gas-fired portable unvented infrared heater for recreational and commercial use | Brian S. Vandrak, John D. DuRoss, Jr. | 2003-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648635 | Gas-fired portable unvented infrared heater for recreational and commercial use | Brian S. Vandrak, John D. DuRoss, Jr. | 2003-11-18 |