| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 10 | |
| #2 | Germany | 2 | |
| #3 | Belgium | 1 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Water treatment | |
| #3 | Non-metallic elements | |
| #4 | Compounds containing metals | |
| #5 | Climate change mitigation in wastewater treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rohrer Ernst Dr | 4 |
| #2 | Paul Rohr | 2 |
| #3 | Klaus Ruge | 2 |
| #4 | Ruge Klaus | 1 |
| #5 | Rohr Paul | 1 |
| #6 | Heinrich Schulthess | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH517507A | Water de-sanding plant - with continuous partial sand extraction via a narrow slit | |
| FR2040290A1 | Degassing liquids at higher than atmospheric pressure | |
| DE1708605A1 | Method and device for improving the performance of a mechanical-biological wastewater treatment plant |