Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4910334 | Recovery of overbased alkaline earth metal additives from centrifugates | Frank A. Stuart | 1990-03-20 |
| 4889618 | Treatment of catalyst fines-oil mixtures | Frank A. Stuart | 1989-12-26 |
| 4772399 | Recovery of succinimides from filter cakes | Frank A. Stuart | 1988-09-20 |
| 4706643 | Grill means | — | 1987-11-17 |
| 4638787 | Grill means | — | 1987-01-27 |
| 4614597 | Recovery of oil and sulfonate from filter cake | Frank A. Stuart | 1986-09-30 |
| 4544491 | Recovery of hydrocarbon oil from filter cakes | Frank A. Stuart | 1985-10-01 |
| 4501670 | Recovery of oil and sulfonate from filter cake | Frank A. Stuart | 1985-02-26 |