| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Brazil | 2 | |
| #3 | China | 2 | |
| #4 | France | 2 | |
| #5 | Republic of Korea | 2 | |
| #6 | Canada | 1 | |
| #7 | Japan | 1 | |
| #8 | Russian Federation | 1 | |
| #9 | United States | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Positive-displacement engines | |
| #3 | Cyclically operating valves |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chrupalla Jean-Claude | 7 |
| #2 | Hugues Pascal | 4 |
| #3 | Chrupalla Jean Claude | 3 |
| #4 | Jean-Claude Chrupalla | 3 |
| #5 | Pascal Hugues | 3 |
| #6 | Jean Claude Chrupalla | 1 |
| #7 | Nicolle Adrien | 1 |
| #8 | Krupalla Zhan-Klod | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP3782711A1 | Filtering unit with improved cover assembly | |
| FR2964329A1 | Automatic cleaning filter | |
| FR2964328A1 | Method for manufacturing a filter element | |
| US2008148932A1 | Hydraulic motor |