Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332354 | Process for preparing transparent iron oxide pigment dispersions | Francis G. deMonterey, David Mathew Johnson | 1982-06-01 |
| 4300954 | Flushing process for pigments | Francis de Monterey, David Mathew Johnson | 1981-11-17 |