Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258984 | Process for the preparation of 4-alkylsulfonyl-1-alkyl-2-chlorobenzenes and similar compounds | Theodor Papenfuhs | 2001-07-10 |
| 5498798 | 4-alkyl-3-chlorobenzenesulfinic acids, 4-alkyl-3-chlorobenzenesulfonylcarboxylic acids, 4-alkyl-3-chloroalkylsulfonylbenzenes and preparation thereof | Theodor Papenfuhs | 1996-03-12 |
| 5382694 | Process for the continuous production of aromatic aldehydes | Gilbert Billeb | 1995-01-17 |
| 5227545 | Process for the preparation of 2,4-dichlorofluorobenzene | Theodor Papenfuhs, Ralf Pfirmann | 1993-07-13 |