| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 6 | |
| #2 | Switzerland | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 1 | |
| #5 | United Kingdom | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry | |
| #3 | Machines | |
| #4 | Civil engineering | |
| #5 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Postrihac Rudolf Ing | 6 |
| #2 | Postrihac Rudolf | 2 |
| #3 | Rudolf Postrihac | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3944408A | Method for producing biological fertilizers from sewage | |
| DE2317537A1 | Fertilizer prodn. from waste waters - by mixing clarification sludge with sulphite waste liquors, then adding vegetable material | |
| DE2301909A1 | Utilization of sulphite waste liquor from paper - for removing toxic gases from waste and exhaust gases | |
| GB686485A | Windows made of profiled metal or profiled plastic material |