| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Ireland | 2 | |
| #5 | India | 2 | |
| #6 | New Zealand | 2 | |
| #7 | Portugal | 2 | |
| #8 | United States | 2 | |
| #9 | WIPO (World Intellectual Property Organization) | 2 | |
| #10 | South Africa | 2 | |
| #11 | Brazil | 1 | |
| #12 | Canada | 1 | |
| #13 | China | 1 | |
| #14 | Denmark | 1 | |
| #15 | Spain | 1 | |
| #16 | Finland | 1 | |
| #17 | Israel | 1 | |
| #18 | Mexico | 1 | |
| #19 | Norway | 1 | |
| #20 | African Intellectual Property Organization | 1 | |
| #21 | Philippines | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Chemical engineering | |
| #3 | Environmental technology | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Non-metallic elements | |
| #3 | Inorganic compounds | |
| #4 | Water treatment | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Squires Rodney Charles | 17 |
| #2 | Downing Anthony Leighton | 17 |
| #3 | James Anthony Noel | 5 |
| #4 | Hoyle Brian George | 5 |
| #5 | Downing Anthony L | 3 |
| #6 | Squires Rodney C | 3 |
| #7 | Squires R C | 2 |
| #8 | Hoyle Brian G | 2 |
| #9 | Rodney Charles Squires | 2 |
| #10 | Downing A L | 2 |
| Publication | Filing date | Title |
|---|---|---|
| IE861866L | Removing selenium form water | |
| GB8705387D0 | Removing selenium from water | |
| GB8612919D0 | Removing selenium from water | |
| ZA8601834B | Cross-flow filtration | |
| US4765906A | Cross-flow filtration | |
| GB8601763D0 | Removing selenium from water | |
| GB8517531D0 | Removing selenium from water |