Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8763564 | Water heater and method of operating | Yonghua Cheng, Larry Chanasyk | 2014-07-01 |
| 7007858 | Compact boiler with tankless heater for providing heat and domestic hot water and method of operation | Shuqing Cui, Neil Rolph | 2006-03-07 |
| 6647932 | Compact boiler with tankless heater for providing heat and domestic hot water | Shuqing Cui, Neil Rolph | 2003-11-18 |