Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| PP7033 | Pyrus betulaefolia `Southworth` | — | 1989-09-19 |
| PP7036 | Green ash named `Wasky` | — | 1989-09-19 |
| PP6993 | Red maple named Wandell | — | 1989-08-22 |
| PP6746 | English oak named `Wandell` | — | 1989-04-18 |
| PP6745 | Littleleaf linden named `Norbert` | — | 1989-04-18 |
| PP6709 | Thornless Honeylocust | — | 1989-04-04 |
| PP6511 | Sterling silver linden | — | 1989-01-03 |