Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10757872 | Multi-functional and modular tree removal and maintenance apparatus and related methods | John A. Helmsderfer, Stuart McDowell, Alex Androski | 2020-09-01 |
| 8739843 | Multi-functional and modular tree removal and maintenance apparatus and related methods | John A. Helmsderfer, Stuart McDowell, Alex Androski | 2014-06-03 |