Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D328174 | Waste disposal chute or similar article | — | 1992-07-21 |
| 4919613 | Method and apparatus for calcination | — | 1990-04-24 |
| 4455285 | Heat treatment of material | Peter C. Wheatley, William G. Kaye | 1984-06-19 |