Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686630 | Purifying cyclic esters by aqueous solvent extraction | Timothy J. Eggeman | 1997-11-11 |
| 5681728 | Method and apparatus for the recovery and purification of organic acids | — | 1997-10-28 |