Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696197 | Heterogeneous silica carbon black-filled rubber compound | Kevin James Pyle, William Paul Francik, Paul Harry Sandstrom | 1997-12-09 |
| 5641836 | Rubber compositions | John D. Carter | 1997-06-24 |