| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 2 | |
| #3 | Brazil | 1 | |
| #4 | Switzerland | 1 | |
| #5 | Germany | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | Mexico | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Water treatment | |
| #3 | Climate change mitigation in wastewater treatment | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ricketts Donald D | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US7276155B1 | Waste treatment apparatus with integral membrane apparatus | |
| EP1853365A2 | Tertiary filter | |
| DE102004001506A1 | tertiary filters | |
| US6572774B2 | Waste treatment method and apparatus with integral clarifier | |
| US6613229B2 | Waste treatment method and apparatus with denitrification chamber |