Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4693751 | Titanium dioxide suspension for use in film coating | Richard F. Heinze | 1987-09-15 | $819,000 |
| 4652313 | Aqueous lake pigment suspension | Richard F. Heinze, Benjamin L. Meyers, Barendra C. Mallik | 1987-03-24 | $728,000 |