Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039428 | Waste water treatment process using improved recycle of high density sludge | Surendra K. Mishra, Roger N. Kust, E. Stuart Savage | 1991-08-13 |
| 4217208 | Method for separating solid lubricating material from drill cuttings | — | 1980-08-12 |