Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919948 | Prolonging the shelf life of fresh root vegetables | John O. Spingler, Seymour G. Gilbert | 1990-04-24 |
| 4855153 | Prolonging the shelf life of fresh root vegetables | John O. Spingler, Seymour G. Gilbert | 1989-08-08 |
| 4808420 | Fresh root vegetables with prolonged shelf life | John O. Springler, Seymour G. Gilbert | 1989-02-28 |
| 4753808 | Packaged pre-cut vegetables | John O. Spingler | 1988-06-28 |
| 4751094 | Method for slicing fruits and vegetables | John O. Spingler | 1988-06-14 |
| 4711789 | Prolonging the shelf life of pre-cut fresh celery | John O. Spingler | 1987-12-08 |
| 4670275 | Prolonging the shelf life of fresh root vegetables | John O. Spingler, Seymour G. Gilbert | 1987-06-02 |