Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6085806 | Environmentally safe kit for changing motor oil | Joann Davis | 2000-07-11 |
| 5453522 | Colorant for use in business recording | Ford P. Wilgis, Vernon J. Shiner, Jr. | 1995-09-26 |
| RE30803 | Colorless recording paper | — | 1981-11-24 |
| RE30797 | Associated dye salts and method of forming colored indicia therewith | — | 1981-11-17 |
| 4242428 | Additive system of color photography based on iridescent pigments | — | 1980-12-30 |
| 4184872 | Additive system of color photography based on iridescent pigments | — | 1980-01-22 |