Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543550 | Process for the preparation of 5-fluoroanthranilic alkyl esters and/or 5-fluoroanthranilic acid | Siegfried Planker, Theodor Papenfuhs, G unter Bartels | 1996-08-06 |
| 5523472 | Process for the preparation of 5-fluoroanthranilic acid | Freimund Rohrscheid, Theodor Papenfuhs | 1996-06-04 |
| 5276203 | Process for the preparation of 1,2-bis-(2-nitrophenoxy)-ethane | Theodor Papenfuhs, Wilfried Pressler | 1994-01-04 |
| 5233083 | Process for the preparation of 2-amino-3-chlorobenzoic acid | Theodor Papenfuhs | 1993-08-03 |
| 5128440 | Wholly aromatic polyamide from alkylsulfonyl aromatic diamine | Gunter Keil, Reiner Hess | 1992-07-07 |