Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981913 | Bridged, water-soluble copolymers, their preparation and their use | Dietmar Moench, Andreas Stange, Joerg Liebe, Franz Merger, Manfred Schwartz | 1991-01-01 |
| 4933378 | Fluid loss control additives for oil well cementing compositions | Clare H. Kucera, Stefano C. Crema, Michael D. Roznowski, Gerd Konrad | 1990-06-12 |