Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4563415 | Thermographic system using naphthoylated leuco phenazine dyes | Louis M. Leichter, Alan G. Miller | 1986-01-07 |
| 4514045 | Helichromic-smectic liquid crystal compositions and display cells | William A. Huffman | 1985-04-30 |
| 4394070 | Helichromic compounds and displays | William A. Huffman | 1983-07-19 |
| 4316984 | Thermolabile acutance dyes | — | 1982-02-23 |
| 4260676 | Photothermographic emulsions containing thermolabile acutance dyes | — | 1981-04-07 |