| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Brazil | 1 | |
| #3 | Canada | 1 | |
| #4 | China | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | Mexico | 1 | |
| #8 | Taiwan | 1 | |
| #9 | United States | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Climate change mitigation in wastewater treatment | |
| #2 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yencho Stephen A | 10 |
| #2 | Stephen A Yencho | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009084734A1 | Ultraviolet water purification system |