Issued Patents All Time
Showing 76–87 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689523 | Electrophotographic organophotoreceptors with novel charge transport compounds | Kam W. Law, Zbigniew Tokarski | 2004-02-10 |
| 6670085 | Electrophotographic organophotoreceptors with novel charge transport compounds | Hwan-koo Lee, Kam W. Law | 2003-12-30 |
| 6340548 | Organophotoreceptors for electrophotography featuring novel charge transport compounds | Zbigniew Tokarski, Terrance P. Smith | 2002-01-22 |
| 6140004 | Organophotoreceptors for electrophotography featuring novel charge transport compounds | Andrew Mott, David J. Owen, Martin D. Attwood, Richard Barcock, Richard J. Ellis +2 more | 2000-10-31 |
| 6066426 | Organophotoreceptors for electrophotography featuring novel charge transport compounds | Andrew Mott, David J. Owen, Martin D. Attwood, Richard Barcock, Richard J. Ellis +2 more | 2000-05-23 |
| 5846901 | Color-forming compounds and their use in carbonless imaging | — | 1998-12-08 |
| 5670446 | Sultine color-former compounds and their use in cabonless copy paper | Alan R. Katritzky, Josef V. Ugro, Jr. | 1997-09-23 |
| 5462597 | System for inkless fingerprinting | — | 1995-10-31 |
| 5350857 | Thiazolo[5,4-D]thiazsole Color-formers | — | 1994-09-27 |
| 5284812 | Thiazolo[5,4-d]thiazole color-formers | — | 1994-02-08 |
| 5204311 | Ethanediimidic acid bis[(arylalkylidene)hydrazide] color-formers | — | 1993-04-20 |
| 5124308 | Monosubstituted dithiooxamide compounds and their use | Loren D. Albin, David R. Boston, Derek R. Callaby, Jacqueline M. Furlong, Robert J. Lokken +5 more | 1992-06-23 |