Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6380437 | Process for the preparation of unsaturated 4,5-allene ketones, 3,5-diene ketones and the corresponding saturated ketones | Nongyuan Shi, Bernd Drapal, Rainer Peter, Steffen Krill, Klaus Huthmacher +1 more | 2002-04-30 |
| 6063968 | Method for the production of trimethylhydroquinone | Steffen Krill, Bernd Drapal, Hermann Schmitt, Klaus Huthmacher, Herbert Tanner | 2000-05-16 |
| 6048988 | Process for the production of .alpha.-tocopherol esters | Steffen Krill, Rainer Hahn, Horst Weigel, Klaus Huthmacher | 2000-04-11 |
| 6013815 | Production and use of salts of 6,8-bis (amidiniumthio)-octanoic acid | Thomas Beisswenger, Rainer Gewald, Alfred Olbrich, Horst Bethge, Klaus Huthmacher +4 more | 2000-01-11 |
| 6005147 | Method of producing 3, 5, 5-trimethylcyclohexa-3-ene-1-one(.beta.-isophorone) by the isomerization of 3, 5, 5-trimethylcyclohexa-2-ene-1-(.alpha.-isophorone) | Steffen Krill, Gunes Giray, Klaus Huthmacher, Herbert Tanner | 1999-12-21 |
| 5981767 | Method of producing dry thioctic acid | Herbert Tanner, Karlheinz Drauz, Gerhard Sator, Horst Bethge, Roland Moller +2 more | 1999-11-09 |
| 5969176 | Process for the production of trimethylhydroquinone diesters and of trimethylhydroquinone | Steffen Krill, Horst Weigel, Nongyuan Shi, Hans Joachim Hasselbach, Klaus Huthmacher | 1999-10-19 |
| 5907065 | Method of producing .beta.-isophorone by the isomerization of .alpha.-isophorone | Steffen Krill, Gunes Giray, Rainer Hahn, Klaus Huthmacher, Herbert Tanner | 1999-05-25 |
| 5874632 | Method of producing ketoisophorone | Rainer Hahn, Ulrich Gora, Klaus Huthmacher, Steffen Krill | 1999-02-23 |
| 5760268 | Production and use of salts of 6, 8-bis (amidiniumthio) -octanoic acid | Thomas Beisswenger, Rainer Gewald, Alfred Olbrich, Horst Bethge, Klaus Huthmacher +4 more | 1998-06-02 |
| 5618957 | Method of producing salcomine | Ulrich Gora, Klaus Huthmacher, Karlheinz Drauz | 1997-04-08 |
| 5455264 | RS-thioctic acid with novel morphology | Thomas Beisswenger, Horst Bethge, Joachim Goede, Klaus Huthmacher, Herbert Klenk +1 more | 1995-10-03 |