Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7790014 | Removal of substances from metal and semi-metal compounds | Derek John Fray, Zheng Chen | 2010-09-07 |
| 6712952 | Removal of substances from metal and semi-metal compounds | Derek John Fray, Zheng Chen | 2004-03-30 |