Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942307 | Lightweight building board | Walter Hellermann, Christian Baron, Hubertus Ohm | 1999-08-24 |
| 4968737 | Molding compounds comprising a thermoplastically processible aromatic polyamide | Martin Bartmann, Friedrich Georg Schmidt | 1990-11-06 |
| 4952662 | Molding compounds comprising a thermoplastically processible, aromatic polyamide | Martin Bartmann, Joachim Muegge, Friedrich Georg Schmidt | 1990-08-28 |
| 4950808 | Process for the preparation of 4,4'-dihydroxybiphenyl | Udo Kowalczik, Martin Bartmann | 1990-08-21 |
| 4868272 | Molding materials, containing imide group-containing aromatic polyamides and process for their preparation | Martin Bartmann, Friedrich Georg Schmidt | 1989-09-19 |
| 4864009 | Molding composition consisting of aliphatic/aromatic copolyamide | Wolfgang Neugebauer, Holger Koziel, Martin Bartmann | 1989-09-05 |
| 4851496 | Molding material comprising a thermotropic, aromatic polyester from bis(carboxy phenoxy)diphenyl sulfone | Heinz-Guenter Poll, Wolfgang Neugebauer, Martin Bartmann | 1989-07-25 |
| 4843139 | Moldable high molecular weight aromatic polyamide from poly arylene oxy diamine | Martin Bartmann | 1989-06-27 |
| 4824932 | Method of manufacturing thermoplastically processible aromatic polyamides and polyamidimides from bisamide | Martin Bartmann | 1989-04-25 |
| 4749768 | Process for producing thermoplastically processable aromatic polyamide with phosphorus catalyst | Martin Bartmann | 1988-06-07 |