| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 2 | |
| #2 | United States | 2 | |
| #3 | Austria | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Italy | 1 | |
| #9 | Netherlands | 1 | |
| #10 | Norway | 1 | |
| #11 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Animal care |
| # | Name | Total Patents |
|---|---|---|
| #1 | Veldman Adrian | 6 |
| #2 | Veldman A | 2 |
| #3 | Verbruggen Johannes M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1032491A | Unibody frame with indexing means for dung disposal device | |
| DE2601897A1 | Stable litter retaining device with liquid drain holes - has inverted U-section retainer with apertures and channels for liquid | |
| NL7600176A | Stable litter retaining device with liquid drain holes - has inverted U-section retainer with apertures and channels for liquid | |
| US3938471A | Bedding retainer with drainage facility | |
| US3933125A | Bedding retainer |