Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688976 | Process for the production of 8 .alpha., 12-oxido-13,14,15,16-tetranorlabdane | Andreas Bomhard, Ulf-Armin Schaper, Theo Stalberg, Thomas Markert | 1997-11-18 |
| 5670670 | Process for the production of 8 .alpha., 12-oxido-13,14,15,16-tetranorlabdane | Andreas Bomhard, Ulf-Armin Schaper, Theo Stalberg, Thomas Markert | 1997-09-23 |
| 5609650 | Dyeing of keratin fibres with indolines using metal salts as catalysts | Horst Hoeffkes, Winifried Neuhaus, Edgar Lieske | 1997-03-11 |