Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6032340 | Method and device for pretreatment of a carpet yarn having tiny fine hairs on its surface | Steffen Greif, Heinz Gruber, Peter Pfeiffer, Ingo Lison | 2000-03-07 |
| 5903962 | Method and device for the pretreatment of a carpet yarn having tiny fine hairs on its surface | Steffen Greif, Heinz Gruber, Peter Pfeiffer, Ingo Lison | 1999-05-18 |