Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360380 | Process for recovery of metal values from sludges | — | 1982-11-23 |
| 4356030 | Safe disposal of metal values in slag | Peter T. Halpin | 1982-10-26 |
| 4348228 | Yield of metal values from incinerated sludges | — | 1982-09-07 |