Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7316843 | Melt-spun synthetic fiber and process for producing the fiber | Samuel Mooney, Ralf Koehnen, Qiao Xiao, Ralf Schnell | 2008-01-08 |
| 6787227 | High-tenacity yarn with profiled filaments | Ralf Koehnen, Frank Leymann, Gerhard Berberich, Hans A. Graefe, Andreas Tulke +1 more | 2004-09-07 |