Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441202 | Heterocyclic compounds extracted by a hydrocarbon | — | 2002-08-27 |
| 6432276 | Method to separate ethanol from a solution containing sulfuric acid and ethanol | — | 2002-08-13 |
| 6420533 | Method to separate sodium from lignins and produce a sodium containing solution for recycle | — | 2002-07-16 |