Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7288308 | Floor covering of an elastomer material having a textured surface | Gerhard Graab, Alfons Butscher | 2007-10-30 |
| 6939598 | Floor covering made of an elastomer material having a relief-type patterned surface | Klaus Heckel, Alfons Butscher | 2005-09-06 |