| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 1 | |
| #2 | Canada | 1 | |
| #3 | German Democratic Republic | 1 | |
| #4 | Egypt | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Spain | 1 | |
| #7 | Hungary | 1 | |
| #8 | Israel | 1 | |
| #9 | Poland | 1 | |
| #10 | United States | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry |
| # | Name | Total Patents |
|---|---|---|
| #1 | Knepper Hermann | 7 |
| Publication | Filing date | Title |
|---|---|---|
| BR8107487A | Process and device for the separation of a liquid waste product, like liquid manufacture and clarification mud, in a solid phase and a liquid phase | |
| EP0052722A1 | Process and installation for separating a liquid waste product, such as manure or sewage, into a liquid phase and a solid phase | |
| CA1147572A | Method for producing solid fertilizer by separating liquid manure and an apparatus for the execution of this method |