Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| PP19981 | Nematode resistant grape rootstock ‘8909-05’ | Andrew Peter Walker | 2009-05-12 |
| PP15035 | Grapevine ‘12-76-71’ | — | 2004-07-27 |
| PP8297 | """3-14-71"" grapevine" | — | 1993-07-13 |
| PP6319 | Hybrid grapevine rootstock named `VR 043-43` | Lloyd A. Lider, Austin C. Goheen | 1988-10-04 |
| PP6166 | Hybrid grapevine rootstock | Lloyd A. Lider, Austin C. Goheen | 1988-05-03 |
| PP5056 | Table grape | Albert T. Koyama | 1983-05-31 |
| PP5013 | Grapevine `Symphony` | — | 1983-03-29 |
| PP4866 | Variety of grapevine | James F. Guymon, deceased | 1982-07-13 |
| PP4856 | Grapevine | — | 1982-06-08 |
| PP4787 | Table grape | Albert T. Koyama | 1981-11-10 |
| PP4788 | Table grape | Albert T. Koyama | 1981-11-10 |
| PP4784 | Table grape | Albert T. Koyama | 1981-11-03 |