Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4577024 | Oxoindolizine and oxoindolizinium compounds useful as dyes | George L. Fletcher, Jr., Steven Bender | 1986-03-18 |
| 4450093 | Indolizinone dyes and compositions, elements and methods using same | George L. Fletcher, Jr. | 1984-05-22 |
| 4446223 | Recording and information record elements comprising oxoindolizine and oxoindolizinium dyes | Harold T. Thomas, George L. Fletcher, Jr., Charles H. Weidner | 1984-05-01 |
| 4373021 | Indolizinone dyes and compositions, elements and methods using same | George L. Fletcher, Jr. | 1983-02-08 |
| 4368247 | Photographic materials and processes comprising oxoindolizine and oxoindolizinium compounds | George L. Fletcher, Jr., Steven Bender | 1983-01-11 |