Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566964 | Convertible towing device | — | 1996-10-22 |
| 5482534 | Extraction or recovery of non-ferrous metal values from arsenic-containing materials | John G. Whellock | 1996-01-09 |
| 5372630 | Direct sulphidization fuming of zinc | Kevin A. Foo, John G. Whellock, Richard S. Celmer | 1994-12-13 |