Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880898 | Water-soluble polycondensates based on fatty acids, dialkanolamine and maleic anhydride, a process for their production, hydraulic compositions containing them and their use | Bernd Wahle, Hermann Anzinger, Horst Ziche | 1989-11-14 |
| 4654085 | Additive for cementitious compositions | — | 1987-03-31 |