Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870214 | Antioxidant | Raymond A. Schell | 1989-09-26 |
| 4847434 | Biphenol process | Dixie E. Goins, John S. Gramling | 1989-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870214 | Antioxidant | Raymond A. Schell | 1989-09-26 |
| 4847434 | Biphenol process | Dixie E. Goins, John S. Gramling | 1989-07-11 |