Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347038 | Process of the preparation of 2,5-di-phenylamino-terephthalic acid and its dialkyl esters in a high purity | Otto Arndt, Hermann Fuchs | 1994-09-13 |
| 5300693 | Process for the preparation of 1,4-bis(4-fluorobenzoyl)-benzene | Georg Grotsch, Hans H. Schubert | 1994-04-05 |