Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444856 | Preparation of aldehydes and/or alcohols having from 6 to 30 carbon atoms | Armin Volker Grenacher, Hans Stepp, Hans Frohlich, Willi Schönmann, Gerhard Borchert | 2002-09-03 |
| 5165822 | Pipe joint for driving pipes laid underground by the driving technique | — | 1992-11-24 |
| 4805771 | Belt for machine delivery of piece goods, especially electrical components and modules in automatic circuit board assembly machines | — | 1989-02-21 |