| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | United States | 1 | |
| #4 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Mechanical elements | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Nails | |
| #3 | Chemical or physical processes | |
| #4 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schewe Hermann | 5 |
| #2 | Schewe Ralf | 5 |
| #3 | Schewe Christian | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP3023134A1 | Filter nozzle | |
| EP3017853A1 | Filter nozzle and filter nozzle system | |
| DE102010034966A1 | ion exchanger | |
| DE19803118C1 | Filter nozzle | |
| DE19732737C1 | Connection fitting especially for water filter tank | |
| DE4239293A1 | Plastic filter nozzle | |
| DE3920756A1 | Threaded part made of plastic with screw-on counter thread part | |
| DE3920678A1 | Filter nozzle | |
| US4941975A | Star-shaped filter nozzle | |
| DE3440458A1 | Filter nozzle | |
| DE3408826A1 | Plastic filter nozzle, in particular for water treatment and purification |