Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5494566 | Lubricating oil dewaxing with membrane separation of cold solvent | Ronald M. Gould | 1996-02-27 | $59,689,000 |
| 5360530 | Lubricating oil dewaxing using membrane separation of cold solvent from dewaxed oil and recycle of cold solvent to filter feed | Ronald M. Gould, William F. Heaney, Howard Edwin SPENCER | 1994-11-01 | $32,390,000 |
| 4737264 | Heavy oil distillation system | William F. Heaney | 1988-04-12 | $22,655,000 |
| 4670133 | Heavy oil coking process | William F. Heaney | 1987-06-02 | $17,757,000 |