Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D897167 | Pruning shear lock control | Karl H. Zeller | 2020-09-29 |
| 10219441 | Multi-position lock for pruning device | Karl H. Zeller | 2019-03-05 |
| 8607677 | Method and apparatus for anvil pruner and lopper with shock absorbing feature | Karl H. Zeller | 2013-12-17 |
| D680829 | Secateur | Karl H. Zeller | 2013-04-30 |
| D564310 | Pruner | Karl H. Zeller | 2008-03-18 |
| D562649 | Pruning shears | Karl H. Zeller | 2008-02-26 |
| 7318610 | Picking tool with changeable end effector | Karl H. Zeller | 2008-01-15 |