Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703123 | Method for causing a physiological cooling effect to the skin or mucosa involving the application of carbonic acid esters | Horst Surburg, Rudolf Hopp | 1997-12-30 |
| 5620569 | Process for the photooxidation of terpene olefins | Hans-Dieter Scharf, Peter Esser, Walter Kuhn | 1997-04-15 |