Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656750 | Processes for the preparation of squarylium dyes | Richard M. Allen | 1997-08-12 |
| 5627014 | Benzpyrylium squarylium and croconylium dyes, and processes for their preparation and use | Serajul Haque, Anthony J. Puttick, Socorro M. Ramos, Robert P. Short, Stephen G. Stroud +2 more | 1997-05-06 |