Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4254088 | Salt-soda sinter process for recovering aluminum from fly ash | William J. McDowell | 1981-03-03 |
| 4252777 | Recovery of aluminum and other metal values from fly ash | William J. McDowell | 1981-02-24 |