| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Australia | 1 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Separation | |
| #3 | Ice-boxes | |
| #4 | Climate change adaptation technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Conlon William M | 5 |
| #2 | Hendricks Donald M | 4 |
| #3 | Chang C N | 3 |
| #4 | Chang Chung N | 3 |
| #5 | Chang Chung Nan | 2 |
| #6 | Chang Chung-Nan | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5555747A | Control of crystal growth in water purification by directional freeze crystallization | |
| US5231852A | Melt system for liquid purification by batch crystallization | |
| US5113664A | Melt system for liquid purification by batch crystallization | |
| US4954151A | Method and means for optimizing batch crystallization for purifying water | |
| US4799945A | Dual freezing chamber system and method for water purification |