Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6573404 | Method for producing ortho-alkylated benzoic acid derivatives | Ekkehard Bartmann | 2003-06-03 |
| 6515143 | Method for producing ortho-alkylated benzoic acid derivatives | Ekkehard Bartmann | 2003-02-04 |
| 6350904 | Method for producing ortho-alkylated benzoic acid derivatives | Ekkehard Bartmann | 2002-02-26 |
| 6344566 | Method for producing enantiomer-free N-methyl-N-[(1S)-1-phenyl-2-((3S)-3-hydroxypyrolidine-1-yl)ethyl]-2,2-diphenylacetamide | Andreas Bathe, Bernd Helfert, Karl-August Ackermann, Rudolf Gottschlich, Jens Budak | 2002-02-05 |
| 6277357 | Ketotricyclo[5.2.1.0]decane derivatives | Michael Schwarz, Ulrich Heywang, Jurgen Eckstein | 2001-08-21 |
| 5968482 | .alpha.-hydroxyketoalkyl derivatives as light protection filters | Roland Martin, Ulrich Heywang, Michael Schwarz, Thekla Kurz | 1999-10-19 |
| 5628988 | Ketotricyclo[5.2.1.0]decane derivatives | Michael Schwarz, Ulrich Heywang, J urgen Eckstein | 1997-05-13 |
| 5600007 | Use of .alpha.-hydroxyketoalkyl derivatives as light protection filters | Roland Martin, Ulrich Heywang, Michael Schwarz, Thekla Kurz | 1997-02-04 |
| 5520906 | Triazine derivatives with UV filter properties | Michael Casutt, Ulrich Heywang, Roland Martin, Michael Schwarz | 1996-05-28 |
| 5501850 | Use of benzimidazole derivatives as light protection filters | Ulrich Heywang, Alexander Putz, Roland Martin | 1996-03-26 |
| 5473079 | Process for preparing 2-arylbenzimidazole-5-sulfonic acids | Ulrich Heywang, Ulrich Fechtel, Michael Casutt, Gerald Faller, Hartmut Hartner | 1995-12-05 |
| 5399563 | Benzylidenequinuclidinones | Roland Martin, Michael Casutt, Ulrich Heywang, Henning Bottcher, Gunther Holzemann | 1995-03-21 |
| 5144081 | Dialkoxybenzylidene-camphor derivatives | Ulrich Heywang, Roland Martin | 1992-09-01 |