Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987866 | Zwitterionic surfacant together with an anionic ether-containing surfactant as a drag-reducing agent | Martin Hellsten | 2011-08-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987866 | Zwitterionic surfacant together with an anionic ether-containing surfactant as a drag-reducing agent | Martin Hellsten | 2011-08-02 |