Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11231188 | Trickle structures | — | 2022-01-25 |
| 10955152 | Device for air-conditioning stalls | — | 2021-03-23 |
| 8875659 | Linear water circulating animal drinker | Wolfgang Meyer | 2014-11-04 |
| 8069818 | Drinking trough for animals and water-collecting bowl for a drinking trough for animals | Markus von der Assen | 2011-12-06 |
| 7243611 | Drinking trough with elongated actuator and method of dispensing water therefrom | Wolfgang Meyer | 2007-07-17 |
| 6938578 | Drinking through and method of converting same | — | 2005-09-06 |
| 6450121 | Device for compensating the pressure of a liquid and method for changing the pressure compensation ratio | — | 2002-09-17 |
| 6308657 | Drinking valve | Ludger Lehmkuhl | 2001-10-30 |
| 6073584 | Watering valve | — | 2000-06-13 |
| 5497731 | Water storage tank for an animal watering trough | — | 1996-03-12 |
| 5429072 | Pressure reducer for an animal watering trough | — | 1995-07-04 |
| 5339768 | Floor watering system for feeding water to animals | — | 1994-08-23 |
| 5329877 | Watering valve for small animals having variable flow rates | — | 1994-07-19 |
| 4430960 | Arrangement for keeping fattened poultry | Hans Nagel | 1984-02-14 |
| 4213422 | Grated floor conveyor for poultry enclosure | Hans Nagel | 1980-07-22 |