Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672201 | Composite pigmentary material | Leslie Ainsley Simpson, David Trevor Knight, Ronald Brown | 1997-09-30 |
| 5643974 | Composite pigmentary material | Leslie Ainsley Simpson, David Trevor Knight, Martin Alec Williamson | 1997-07-01 |
| 5622628 | Titanium dioxide slurries concentration | Michael John Trendell, Kevin Drury, Stephen Robert Spruce, Martin Davis | 1997-04-22 |