Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12049391 | Forestry winch | Michael Willenbücher, Bernward Welschof | 2024-07-30 |
| 11905147 | Method for the operation of a forestry winch and forestry winch | Michael Willenbücher, Bernward Welschof | 2024-02-20 |
| 5692847 | Loose leaf binder assembly and spine therefor | Barry M. Zane | 1997-12-02 |