Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6153175 | Indanylidene compounds, a process for their preparation and their use as UV absorbers | Oskar Koch, Horst Surburg, Roland Langner | 2000-11-28 |
| 6034268 | 8-Ocimenyl esters and fragrances and flavors containing the same | Horst Surburg, Stefan Lambrecht, Peter Worner, Matthias Guntert, Günter Kindel +1 more | 2000-03-07 |
| 5965066 | Indanylidene compounds, a process for their preparation and their use as UV absorbers | Oskar Koch, Horst Surburg, Roland Langner | 1999-10-12 |
| 5585091 | Use of benzazoles UV absorbers, new benzazoles and a process for their preparation | Ralf Pelzer, Roland Langner, Horst Surburg, Alfred Krempel, Rudolf Hopp | 1996-12-17 |
| 5455101 | Flat sealing plate combustion engine gasket | Thomas Anhorn, Wilhelm Kullen | 1995-10-03 |
| 4520068 | Reinforced support sheet and method for making same | Hansgeorg Gronle | 1985-05-28 |
| 4478887 | Reinforced support sheet and method for making same | Hansgeorg Gronle | 1984-10-23 |