Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7968630 | Pneumatic tire containing zinc porphyrin compound | Uwe Ernst Frank | 2011-06-28 |
| 7968631 | Pneumatic tire containing zinc naphthalocyanine compound | Uwe Ernst Frank | 2011-06-28 |