Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360530 | Lubricating oil dewaxing using membrane separation of cold solvent from dewaxed oil and recycle of cold solvent to filter feed | William F. Heaney, Albert R. Nitsch, Howard Edwin SPENCER | 1994-11-01 |
| 5358625 | Lubricating oil dewaxing using membrane separation of cold solvent from dewaxed oil | — | 1994-10-25 |