Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321152 | Grinding of titaniferous ores to enhance recovery of titanium dioxide | Gerard M. Sheehan | 1982-03-23 |
| 4183768 | Anatase pigment from ilmenite | Gerard M. Sheehan | 1980-01-15 |