Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496613 | Aqueous media for the treatment of wood and wooden materials and a process for such treatment | Hans-Dieter Zagefka, Wilfried Bartz | 1985-01-29 |
| 4469829 | Amino-group bearing, low molecular weight 1,3-butadiene polymer for stabilizing plastics | Hans-Dieter Zagefka, Konrad Rombusch, Hanns-Jorg Bax | 1984-09-04 |
| 4379890 | Water-soluble polymers carrying quaternary ammonium groups, their preparation and use | Wilfried Bartz | 1983-04-12 |