Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8276526 | Adjusting device | — | 2012-10-02 |
| 6054599 | Phytosphingosine-based ceramide I analogs | Pieter Gijsbert Weber, Johannes Wilhelmus Jacobus Lambers, Hein S. Koger | 2000-04-25 |
| 5919960 | Phytosphingosine-based ceramide I analogs | Pieter Gijsbert Weber, Johannes Wilhelmus Jacobus Lambers, Hein S. Koger | 1999-07-06 |
| 5840940 | Linoleoylamide based ceramide derivative and its use in cosmetic preparations for the treatment of dry skin | Robertus Mattheus De Pater, Hein S. Koger, Johannes Wilhelmus Jacobus Lambers | 1998-11-24 |
| 5795733 | Process for the efficient production of 7-ADCA via 3-(carboxyethylthio) propionyl-7-ADCA | Roelof Ary Lans Bovenberg, Bertus Pieter Koekman, Andreas Hoekema, Jan Metske Van Der Laan, Erik De Vroom | 1998-08-18 |
| 5792794 | Retinoylamide based derivatives of sphingoid bases | Johannes Wilhelmus Jacobus Lambers | 1998-08-11 |
| 5726032 | Process for the efficient production of 7-ADCA via 2-(carboxyethylthio)acetyl-7-ADCA and 3-(carboxymethylthio)propionyl-7-ADCA | Roelof Ary Lans Bovenberg, Bertus Pieter Koekman, Andreas Hoekema, Jan Metske Van Der Laan, Erik De Vroom | 1998-03-10 |
| 5693677 | Ceramide 3 derivatives based on monounsaturated fatty acids | Johannes Wilhelmus Jacobus Lambers | 1997-12-02 |
| 5359058 | Cephem derivatives | Henri G. J. Hirs, Hendrik A. Witkamp, Everardus J. A. M. Leenderts, Jan J. DeKoning, Herman H. Grootveld | 1994-10-25 |
| 5109132 | Process for the preparation of 3-exomethylene cepham derivatives | Jan J. De Koning, Hendrik A. Witkamp | 1992-04-28 |
| 4994454 | Cepham derivatives | Jan J. DeKoning, Hendrik A. Witkamp | 1991-02-19 |
| 4985554 | Process for the preparation of 3-exomethylene cepham derivatives | Jan J. De Koning, Hendrik A. Witkamp | 1991-01-15 |
| 4921954 | Process for the preparation of cephem compounds | Hendrik A. Witkamp, Jan J. DeKoning, Herman H. Grootveld, Everardus J. A. M. Leenderts | 1990-05-01 |
| 4695627 | Cephalosporin deoxygenation process | Herman H. Grootveld, Henri G. J. Hirs, Gerardus J. Van Veen, Jan Kalter, Peter W. Henniger | 1987-09-22 |