Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4263109 | Precipitation of chloride from zinc sulphate solution | Godefridus M. Swinkels, Michael J. Fairweather, Ernest G. Parker | 1981-04-21 |
| 4231981 | Cadmium mercury telluride sputtering targets | Robert W. Smyth | 1980-11-04 |
| 4192851 | Leaching of metal sulphides | John F. Higginson, Ernest G. Parker, Godefridus M. Swinkels | 1980-03-11 |