Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693257 | Compositions and method for breaking water-in-oil emulsions | — | 1997-12-02 |
| 5693216 | Method of and composition for breaking oil and water emulsions in crude oil processing operations | Jen-Chi Chen, Fu Chen, Thai H. Duong | 1997-12-02 |
| 5681451 | Settling aids for solids in hydrocarbons | — | 1997-10-28 |
| 5667669 | Methods for inhibiting foam | — | 1997-09-16 |
| 5611869 | Refinery vessel cleaning treatment | — | 1997-03-18 |
| 5607574 | Method of breaking reverse emulsions in a crude oil desalting system | — | 1997-03-04 |
| 5593572 | Settling aids for solids in hydrocarbons | — | 1997-01-14 |