Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610221 | Tire tread composition comprising highly reinforcing reinforced amorphous precipitated silica | Walter H. Waddell, Thomas G. Krivak | 1997-03-11 |
| 5605950 | Tire tread composition comprising highly reinforcing reinforced amorphous precipitated silica | Walter H. Waddell, Thomas G. Krivak | 1997-02-25 |