Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5494703 | Oxidation proof silicate surface coating on iron sulfides | — | 1996-02-27 |
| 5286522 | H.sub.2 O.sub.2 induced oxidation proof phosphate surface coating on iron sulfides | Xiao Huang | 1994-02-15 |