Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5297740 | Process for the production of polyacrylic acids | Andreas Gebauer | 1994-03-29 |
| 5292404 | Process for trash removal or pitch-like resin control in the paper manufacture | Hans-Georg Hartan | 1994-03-08 |