| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | United States | 3 | |
| #3 | Canada | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Germany | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Italy | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Chemical or physical processes | |
| #3 | Water treatment | |
| #4 | Mixing | |
| #5 | Climate change adaptation technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lerat Henry | 3 |
| #2 | Le Dall Guy | 3 |
| #3 | Ledall Guy | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA1182593A | Apparatus for treating liquids through ion exchange resin, especially a domestic water softener | |
| DE3044996A1 | Controlled mfr. of saturated solution - in two-compartment container with meter for admitted and extracted solvent | |
| US4237538A | Electronic means for controlling the regeneration of resins in a resin type ion exchange device | |
| US4169789A | Process and apparatus for purifying sea water by reverse osmosis |