Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866023 | Process for the shaping agglomeration of particulate solids and solids produced by the process | Hans-Peter Handwerk, Franz-Josef Carduck | 1989-09-12 |
| 4810305 | Hydrophobic pigments and fillers for incorporation in synthetic resins | Rolf Braun, Peter Panek, Horst Bornefeld, Dieter Rade | 1989-03-07 |
| 4797964 | Compositions for finishing textiles | Hans-Peter Handwerk, Kaspar Schlueter, Heinz Hassenjuergen | 1989-01-17 |