Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7097909 | Nonfelting wool and antifelt finishing process | Bernhard Jansen, Ferdi Kümmeler | 2006-08-29 |
| 6846336 | Acid-resistant solutions containing aromatic formaldehyde condensation products | Michael Gerle, Klaus Walz, Hans-Albert Ehlert | 2005-01-25 |
| 6649029 | Nonfelting wool and antifelt finishing process | Bernhard Jansen, Ferdi Kümmeler | 2003-11-18 |
| 5569724 | N-menthylol derivatives of polycondensation products, their preparation and use | Udo-Winfried Hendricks | 1996-10-29 |