Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885155 | Anticalculus compositions using pyrophosphate salt | John J. Parran, Jr. | 1989-12-05 |
| 4834895 | Articles and methods for treating fabrics in clothes dryer | Thomas E. Cook, Rodolfo Delgado, Carlos Gabriel Linares, Toan Trinh | 1989-05-30 |
| 4806339 | Oral compositions | John J. Parran, Jr. | 1989-02-21 |