Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700395 | Dispersants | John D. Schofield | 1997-12-23 |
| 5629417 | Phthalocyanines | James Stanley Campbell, Peter Gregory | 1997-05-13 |
| 5608053 | Poly-substituted phthalocyanines | Peter Gregory | 1997-03-04 |