Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576086 | Method for producing paper, paperboard and cardboard using an uncrosslinked fixing agent during paper stock draining | Roland Ettl, Hubert Meixner, Anton Esser, Rainer Scholz, Norbert Mahr +2 more | 2003-06-10 |
| 6538150 | Substituted sulfonylaminomethylbenzoic acid (derivatives) and their preparation | Hans-Joachim Ressel, Lothar Willms | 2003-03-25 |