Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831176 | Ether phosphonate surfactants having branched hydrophobic tails and their use in an enhanced oil recovery process | Krister Holmberg | 1989-05-16 |
| 4650000 | Acidizing method using microemulsion | Eva Andreasson, Finn Egeli, Krister Holmberg, Borje Nystrom, Kjell Stridh | 1987-03-17 |