Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851433 | Method of and composition for breaking oil and water emulsions in crude oil processing operations | Paul R. Hart, Jen-Chi Chen, Fu Chen | 1998-12-22 |
| 5693216 | Method of and composition for breaking oil and water emulsions in crude oil processing operations | Paul R. Hart, Jen-Chi Chen, Fu Chen | 1997-12-02 |