Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| PP9835 | Asian pear tree named `Asio 1` | Joel S. Spira, Ruth R. Spira, Neil J. Vincent | 1997-03-25 |
| PP9827 | Asian pear tree named `Asio 2` | Joel S. Spira, Ruth R. Spira, Neil J. Vincent | 1997-03-18 |
| PP9828 | "Asian pear tree named ""asio 3""" | Joel S. Spira, Ruth R. Spira, Neil J. Vincent | 1997-03-18 |
| PP9822 | Asian pear tree named `Asio 4` | Joel S. Spira, Ruth R. Spira, Neil J. Vincent | 1997-03-11 |