Issued Patents All Time
Showing 76–84 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| PP4562 | Chrysanthemum plant | William E. Duffett | 1980-07-01 |
| PP4554 | Chrysanthemum plant cultivar name: Radiant | William E. Duffett | 1980-06-24 |
| PP4555 | Chrysanthemum plant cultivar name: Vanguard | William E. Duffett | 1980-06-24 |
| PP4556 | Chrysanthemum plant | William E. Duffett | 1980-06-24 |
| PP4531 | Chrysanthemum plant | William E. Duffett | 1980-05-06 |
| PP4517 | Chrysanthemum plant | Grace H. Mack, William E. Duffett | 1980-04-01 |
| PP4506 | Chrysanthemum plant | William E. Duffett | 1980-02-26 |
| PP4505 | Chrysanthemum plant | William E. Duffett | 1980-02-26 |
| PP4494 | Chrysanthemum plant | William E. Duffett | 1980-01-15 |