| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | Canada | 4 | |
| #3 | Germany | 4 | |
| #4 | Switzerland | 2 | |
| #5 | Austria | 1 | |
| #6 | Finland | 1 | |
| #7 | Hong Kong | 1 | |
| #8 | Norway | 1 | |
| #9 | Singapore | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Civil engineering | |
| #3 | Control | |
| #4 | Environmental technology | |
| #5 | Machines | |
| #6 | Thermal processes | |
| #7 | Mechanical elements | |
| #8 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schenk Rudolf | 15 |
| #2 | Schlaginhaufen Arthur | 4 |
| #3 | Rudolf Schenk | 1 |
| #4 | Schlaginghaufen Arthur | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE4442704A1 | Filter assembly for domestic water supply | |
| CH687853A5 | Filter assembly for domestic water supply | |
| DE4422108A1 | Valve device | |
| DE4341898A1 | Measurement of domestic water pressure using sensors either side of filter assembly | |
| EP0586340A1 | Control valve assembly | |
| EP0563011A1 | Domestic water installation | |
| DE4300585A1 | Liquid treatment plant | |
| FI896149A0 | Filter procedure for hushaollens vattenledningar |