Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4780525 | Thermotropic, fully aromatic polyesters with excellent figidity and toughness, a process for their preparation and their use for the production of shaped articles, filaments, fibres and films | Hans-Rudolf Dicke, Ludwig Bottenbruch, Aziz E. Sayed | 1988-10-25 |
| 4739058 | Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof | Hans-Rudolf Dicke, Dieter Freitag | 1988-04-19 |
| 4716252 | Process for the preparation of bis-hydroxyphenyl-n-alkanes, new bis-hydroxyphenyl-n-alkanes and new alkanediones | Rudolf Wagner, Kurt Halcour, Hans-Rudolf Dicke | 1987-12-29 |
| 4667011 | Thermotropic aromatic polyesters having high mechanical properties and good processability, a process for their preparation, and their use for the production of mouldings, filaments, fibres and films | Hans-Rudolf Dicke, Klaus-Christian Paetz, Aziz El Sayed | 1987-05-19 |