Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7891391 | Tire with tread having an outer cap layer and underlying transition layer containing at least one of depolymerized rubber, pre-cured rubber and coal dust | Paul Harry Sandstrom, Kuo-Chih Hua, Marc Weydert, Joseph Kevin Hubbell, Ping Zhang | 2011-02-22 |
| 6720033 | Method for coating uncured tires | Paul Harry Sandstrom, Bill B. Gross | 2004-04-13 |