Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6114589 | Process for the preparation of fluorinated aromatic compounds | Thomas Wessel, Maren Gutermuth | 2000-09-05 |
| 6103659 | Catalyst comprising an amidophosphonium salt for halex reactions | Sergej Pasenok, Wolfgang Appel, Ralf Pfirmann, Thomas Wessel, Hans H. Schubert | 2000-08-15 |
| 6057478 | Process for preparing arylhydrazines | Heinrich Volk, Manfred Koch | 2000-05-02 |
| 5990309 | 2-chloro-5-fluoro-4-morpholinonitrobenzene and 2-chloro-5-fluoro-4-morpholinoaniline | Theodor Papenfuhs | 1999-11-23 |
| 5917037 | Process for the preparation of n-carboxyalkyl-3-fluoro-4-dialkylaminoanilines | Theodor Papenfuhs | 1999-06-29 |
| 5917036 | Process for the preparation of N-carboxyalkyl-3-fluoro-4-dialkylaminoanilines | Hans H. Schubert | 1999-06-29 |
| 5565612 | Substituted 2-chloro-3,4,5-trifluorobenzenes and a process for their preparation | Ralf Pfirmann | 1996-10-15 |
| 5504264 | Process for preparing 1,3-difluorobenzene | Theodor Papenfuhs | 1996-04-02 |
| 5502260 | Process for preparing multiply fluorinated nitrobenzenes | Theodor Papenfuhs | 1996-03-26 |
| 5498794 | Process for preparing fluoroanilines | Theodor Papenfuhs | 1996-03-12 |
| 5498807 | Process for the preparation of aromatic fluoro compounds | Theodor Papenfuhs | 1996-03-12 |
| 5492875 | Catalyst for nucleophilic aromatic substitutions | Theodor Papenfuhs | 1996-02-20 |
| 5476976 | Process for preparing fluoronitrobenzenes | Theodor Papenfuhs | 1995-12-19 |
| 5466859 | Process for preparing fluorobenzonitriles | Theodor Papenfuhs, Ralf Pfirmann | 1995-11-14 |
| 5451703 | Process for the preparation of biaryls | Theodor Papenfuhs, Joachim Hackenbruch | 1995-09-19 |
| 5397156 | Personalized book kit | Lynn M. Knowles | 1995-03-14 |
| 5294742 | Process for preparing 3,5-difluoroaniline | Theodor Papenfuhs | 1994-03-15 |
| 5187295 | Process for the preparation of 2,4-dichloro-5-fluorobenzonitrile | — | 1993-02-16 |