Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518745 | Metal chelates of water soluble copolymers | Friedrich Engelhardt | 1985-05-21 |
| 4488974 | Softener emulsion, a process for its preparation, and its application | Karl-Heinz Keil, Georg-Wolfgang Eckardt, Volker Kohler | 1984-12-18 |
| 4253715 | Sewing machine console having a lowering device | — | 1981-03-03 |