| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | France | 1 | |
| #5 | Italy | 1 | |
| #6 | Netherlands | 1 | |
| #7 | Norway | 1 | |
| #8 | Sweden | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Foods and drinks | |
| #2 | Machines | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Fodder | |
| #2 | Unspecified technologies | |
| #3 | Animal care |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duchstein Siegfried | 6 |
| Publication | Filing date | Title |
|---|---|---|
| DE3213954C1 | Automatic feeding machine for feeding pigs | |
| DE2924416A1 | PIG FEED | |
| DE1947698A1 | Pig fodder with undigestible additives |