| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 2 | |
| #2 | United States | 2 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | Spain | 1 | |
| #7 | Finland | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | India | 1 | |
| #10 | Italy | 1 | |
| #11 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Choquenet Pierre | 8 |
| #2 | Carles Jean Claude | 5 |
| #3 | Carle Jean C | 2 |
| #4 | Choquenet Pierre Louis Jean | 1 |
| #5 | Shokene Per | 1 |
| #6 | Monsieur Pierre Choquenet | 1 |
| #7 | Carle Jean Claude | 1 |
| #8 | Carle Jean-Claude | 1 |
| #9 | Karl Zhan Klod | 1 |
| #10 | Monsieur Jean Claude Clare | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0453342A1 | Plate filter-press | |
| EP0117159A1 | Filter press with sludge extraction means | |
| CA1192846A | Filtration devices |