Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686512 | Process for manufacturing a surfactant from paper-making black liquor resin for exploitation of petroleum | — | 1997-11-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686512 | Process for manufacturing a surfactant from paper-making black liquor resin for exploitation of petroleum | — | 1997-11-11 |