Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9156990 | Filler for papermaking process | Erik Sanne, Kjell Andersson, Cherryleen Garcia-Lindgren, Marie-Louise Wallberg, Sune Wännström | 2015-10-13 |
| 7939469 | Use of CMC in drilling fluids | — | 2011-05-10 |
| 6627751 | Hydrophobically modified anionic cellulose ethers | Jan Gerardus Batelaan, Berend Jan Dijk | 2003-09-30 |
| 6281172 | Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids | Brent Warren, Theodorus A. van't Zelfde | 2001-08-28 |
| 6103885 | Method of making amide modified carboxyl-containing polysaccharide and fatty amide-modified polysaccharide so obtainable | Jan Gerardus Batelaan | 2000-08-15 |