Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5711939 | Use of esters of branch-chain carboxylic acids with branch-chain alcohols as ingredients of cosmetic agents | Ernst-Joachim Brunke, Gerhard Spirik | 1998-01-27 |
| 4313855 | Fixative for perfume compositions | Erich Klein | 1982-02-02 |
| 4252986 | Fixative for perfume compositions | Erich Klein | 1981-02-24 |