Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| PP4908 | Chrysanthemum plant | William E. Duffett, Marvin D. Mix | 1982-10-26 |
| PP4884 | Chrysanthemum plant | William E. Duffett | 1982-09-07 |
| PP4882 | Carnation plant | William E. Duffett | 1982-08-31 |