Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7985324 | Plasma treatment of fly ash from coal combustion to improve its marketability | — | 2011-07-26 |
| 6835244 | Use of organic carbon-containing minerals | David Bridson Oates, Philip Souza Zacarias | 2004-12-28 |
| 6824585 | Low cost high speed titanium and its alloy production | Adrian Joseph | 2004-11-30 |
| 6755905 | Use of high carbon coal ash | David Bridson Oates, Philip Souza Zacarias | 2004-06-29 |
| 5482534 | Extraction or recovery of non-ferrous metal values from arsenic-containing materials | Rodney L. Leonard | 1996-01-09 |
| 5372630 | Direct sulphidization fuming of zinc | Kevin A. Foo, Rodney L. Leonard, Richard S. Celmer | 1994-12-13 |
| 5350158 | Metallurgical lance and method of cooling the lance | — | 1994-09-27 |
| 5021069 | Method of effecting a bioreaction | Jonathan Goodbody | 1991-06-04 |