Issued Patents 1994
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304655 | N'-substituted N-amino-3,4,5,6-tetrafluorophthalimides, and processes for their preparation | Ralf Pfirmann | 1994-04-19 |
| 5294742 | Process for preparing 3,5-difluoroaniline | Thomas Schach | 1994-03-15 |
| 5292957 | Process for the preparation of N-alkylhalogenoanilines | Werner Brodt | 1994-03-08 |
| 5292967 | Process for producing 2,3-difluoro-6-nitrophenol | Joachim Hackenbruch, Ralf Pfirmann | 1994-03-08 |
| 5276203 | Process for the preparation of 1,2-bis-(2-nitrophenoxy)-ethane | Wilfried Pressler, Jochen Rapp | 1994-01-04 |