Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4982014 | Dihydroxydiphenyl cycloalkanes, their production and their use for the production of high molecular weight polycarbonates | Dieter Freitag, Uwe Westeppe, Claus Wulff, Karl-Herbert Fritsch, Carl Casser +2 more | 1991-01-01 |
| 4964890 | Aromatic polyether ketones | Knud Reuter, Dieter Freitag, Rolf Dhein, Erich Meier, Gerold Muller | 1990-10-23 |
| 4954569 | Use of homopolycarbonates of 3,3'-dihydroxydiphenyl ether for modifying films of thermoplastics | Klaus Berg, Ulrich Grigo, Karsten-Josef Idel, Ludwig Bottenbruch | 1990-09-04 |