Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769645 | Electronic automatic repulsion system | Hugh Mac Truong | 2004-08-03 |
| 6237280 | Protecting trees from vandalisms | — | 2001-05-29 |
| 6192624 | Displaying dwarf trees | — | 2001-02-27 |
| 5799488 | Nurturing treelets | — | 1998-09-01 |