Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11558989 | Three-point hitch for an agricultural machine | Achim Schibel | 2023-01-24 |
| D829726 | Keyboard | — | 2018-10-02 |
| 8360670 | Pen-like applicator | — | 2013-01-29 |
| 8282302 | Pen with locking cap | Jochen Griesheimer | 2012-10-09 |
| 6932375 | Trailer coupling for a work vehicle | — | 2005-08-23 |
| 6293720 | Pencil having an axially-moveable core, particularly a soft-core pencil | — | 2001-09-25 |
| 6149331 | Refillable soft lead pencil | Juergen Raps | 2000-11-21 |
| 5692573 | Towing Arrangement | Joachim Heilmann | 1997-12-02 |
| 4713981 | Remote actuating mechanism | — | 1987-12-22 |