Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5775236 | Combustion control circuit of combustion apparatus | Gordon W. Fenn, Young Moon Ryoo | 1998-07-07 |
| 5775895 | Combustion-state detecting circuit of combustion apparatus | Gordon W. Fenn, Young Moon Ryoo | 1998-07-07 |
| 5526776 | Gas quick water heater | Gordon W. Fenn, Young Moon Ryoo, Min Hwan OH | 1996-06-18 |