Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8841365 | Method for transporting straight run bitumen, and bitumen mixture | Taieb Marzouki | 2014-09-23 |
| 5981030 | Roofing membrane | Siegfried Heinz, Wolfgang Rudolf | 1999-11-09 |