Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885079 | Process for separating organic material from particulate solids | Christopher P. Eppig, Stephen C. Paspek | 1989-12-05 |
| 4842715 | Novel technique for rendering oily sludges environmentally acceptable | Stephen C. Paspek, Jeffrey B. Hauser, Christopher P. Eppig | 1989-06-27 |