Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139204 | Method for recovering hazardous waste material | Francis W. Holm, Albert G. Plys | 1992-08-18 |
| 4735368 | Waste treatment apparatus | Richard M. Janko, Robert J. Zelinski | 1988-04-05 |