Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6703476 | Method for the production of polyamides | Helmut Winterling, Dieter Krauss | 2004-03-09 |
| 6590064 | Use of heterogeneous catalysts in methods for the production of polyamides | Volker Hildebrandt | 2003-07-08 |
| 6569988 | Method for the production of polyamides | Volker Hildebrandt, Dieter Krauss, Martin Leemann | 2003-05-27 |
| 6548626 | Method for preparing polyamides from lactams and polyamide extracts | Volker Hildebrandt, Alfons Ludwig | 2003-04-15 |
| 6531570 | Accelerator for the production of polyamides from aminonitriles | Volker Hildebrandt | 2003-03-11 |
| 6525167 | Method for producing polyamide 6 of a low extract content, high viscosity stability and low remonomerization rate | Volker Hildebrandt, Motonori Yamamoto | 2003-02-25 |
| 6362307 | Method for producing polyamides from amino carboxylic acid compounds | Volker Hildebrandt | 2002-03-26 |
| 6359020 | Method for producing polyamides from aminonitriles | — | 2002-03-19 |
| 6355737 | Method for producing polymer mixtures comprised of amino nitriles and thermoplastic polymers | Martin Weber, Volker Hildebrandt | 2002-03-12 |
| 6353085 | Method for producing polyamides | Volker Hildebrandt, Gunter Pipper, Eberhard Fuchs | 2002-03-05 |
| 6326460 | Method for extracting polyamide particles | Volker Hildebrandt, Volker Warzelhan | 2001-12-04 |
| 6316588 | Continuous preparation of polyamides from aminonitriles | Volker Hildebrandt, Eberhard Fuchs | 2001-11-13 |
| 6310173 | Batch process for producing polyamides from aminonitriles | Volker Hildebrandt | 2001-10-30 |
| 6288207 | Continuous method for producing polyamides from aminonitriles | Dieter Krauss, Volker Hildebrandt | 2001-09-11 |
| 6194538 | Process for producing polyamides from aminonitriles | Robert A. Weiss, Dieter Krauss, Dieter Keller, Gunter Pipper, Wolfgang Harder +1 more | 2001-02-27 |