| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | United States | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Mechanical elements | |
| #3 | Civil engineering | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Venting or aerating devices | |
| #3 | Installations for obtaining water | |
| #4 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cupit David | 8 |
| #2 | David Cupit | 3 |
| #3 | Holden Philip | 1 |
| #4 | Philip Holden | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2020206656A1 | Filters | |
| GB201703387D0 | Fluid filter | |
| GB201617257D0 | Shut-off valve | |
| GB201612600D0 | Filter assembly |