Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354873 | Squarylium dyes, and processes and intermediates for the preparation thereof | Richard M. Allen, Peter K. Chu, John Lee, Donald A. McGowan, Socorro M. Ramos +1 more | 1994-10-11 |
| 5334489 | Process for generation of squaric acid and for imaging, and imaging medium for use therein | Jurgen M. Grasshoff, Stephen J. Telfer | 1994-08-02 |
| 5278031 | Process for thermochemical generation of squaric acid and for thermal imaging, and imaging medium for use therein | Roger A. Boggs, Jurgen M. Grasshoff, Anthony J. Puttick, Stephen J. Telfer, David P. Waller +1 more | 1994-01-11 |