Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632140 | Method and device for directly manufacturing a twisted yarn from dissolved fiber material | Ulrich Ballhausen, Guido Spix | 1997-05-27 |
| 5628177 | Method and device for manufacturing a twisted yarn in an integrated spin-twisting process according to the two-for-one twisting method from dissolved fiber material | Ulrich Ballhausen, Guido Spix | 1997-05-13 |
| 5626011 | Method for joining a thread in a device for manufacturing a twisted yarn by an integrated spinning and twisting process as well as a device for performing the method | Ulrich Ballhausen, Guido Spix | 1997-05-06 |