Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7503888 | Centrifugal separator of heavier particulate materials from light particulate materials in a slurry using a stepped lead-in surface | Pete Simpson, Edwin John William Zonneveld | 2009-03-17 |
| 7500943 | Centrifugal separator of heavier particulate materials from light particulate materials in a slurry using a ring in the collection recess | Pete Simpson, Edwin John William Zonneveld | 2009-03-10 |
| 6997859 | Centrifugal separator with fluid injection openings formed in a separate strip insert | Brett Robert Henry Knelson, Victor James Bartsch, Edwin John William Zonneveld | 2006-02-14 |
| 6818042 | Method of mineral concentrate redress | Lloyd Arthur Skinner | 2004-11-16 |