Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D579859 | Tire | Dale Edward Umstot, Brian Holden, Tuck Foo Thum | 2008-11-04 |
| D403282 | Tire tread | Joseph Louis Aull, Karl Eric Sundkvist, Piotr Janusz Wesolowski, Wolfgang Gnoerich | 1998-12-29 |
| D401895 | Tire tread | Joseph Louis Aull, Karl Eric Sundkvist, Piotr Janusz Wesolowski, Wolfgang Gnoerich | 1998-12-01 |
| D365794 | Tire tread | Michael Joseph Weber, Charles Kenneth Schmalix, Nathan A. Gammon, Perry W. Bell | 1996-01-02 |