| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Brazil | 1 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Israel | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Selby Iii Howard W | 2 |
| #2 | Blades Frederick K | 1 |
| #3 | Selby H | 1 |
| #4 | Howaado Daburiyuu Serubii Za S | 1 |
| #5 | Selby Howard W Iii | 1 |
| #6 | Selby Howard W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4304996A | Water sterilizer and organic matter measurement instrument | |
| US4246101A | Water recycling system | |
| IT7820737D0 | Closed circle domestic waste water recycling - by digester, filter, ion exchange bed and ultraviolet steriliser | |
| US4145279A | Water recycling system |