| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 6 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | China | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Republic of Korea | 2 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Civil engineering | |
| #3 | Environmental technology | |
| #4 | Packaging and shipping | |
| #5 | Engines, pumps and turbines | |
| #6 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rho Young-Gyu | 13 |
| #2 | Rho Young-Bog | 5 |
| #3 | Rho Young Gyu | 2 |
| #4 | Rho Young Bog | 2 |
| #5 | Young-Gyu Rho Young-Bog Rho | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2006070949A1 | Non-motorized automatic circulation system and method and the boiler using said system | |
| WO2006070950A1 | Heat water distributer and heating mat using said distributer | |
| WO2006028301A1 | Water tank | |
| WO2005124218A1 | The quick connector in pipes handy for junction and disjunction | |
| KR20050074730A | Gas control/block valve and automatic circulation device of warm water using the gas valves | |
| KR20050036068A | Automatic circulation device of warm water |