Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7484542 | Tire tread with sipes having tie bars | Karl Eric Sundkvist, Eddy Dong-Rong Pan, David Allen Griffin, John Russell Shaffer, Charles Kenneth Schmalix +1 more | 2009-02-03 |