Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6291143 | Laser absorbable photobleachable compositions | Ranjan C. Patel, Robert James Domett Nairne, Andrew Mott, Mark R. I. Chambers | 2001-09-18 |
| 6171766 | Laser absorbable photobleachable compositions | Ranjan C. Patel, Robert James Domett Nairne, Andrew Mott, Mark R. I. Chambers | 2001-01-09 |
| 5945249 | Laser absorbable photobleachable compositions | Ranjan C. Patel, Andrew Mott, Robert James Domett Nairne, Mark R. I. Chambers | 1999-08-31 |
| 5935758 | Laser induced film transfer system | Ranjan C. Patel, Mark R. I. Chambers, Jonathan C. Vogel, Kevin M. Kidnie, John Souter +1 more | 1999-08-10 |
| 5843617 | Thermal bleaching of infrared dyes | Ranjan C. Patel, Mark R. I. Chambers, Robert James Domett Nairne, Gregory L. Zwaldo | 1998-12-01 |
| 5800974 | Silver halide imaging materials | Julian M. Wallis, Kevin P. Hall, Stephen D. Newman | 1998-09-01 |
| 5578434 | Photographic silver halide developer composition and process for forming photographic silver images | Elda Moizo, Carlo Marchesano, Andrew Mott | 1996-11-26 |
| 5384237 | Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents | Mark P. Kirk, Sylvia A. Farnum, William C. Frank, Randall H. Helland, Jonathan P. Kitchin +7 more | 1995-01-24 |
| 5324627 | Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents | Mark P. Kirk, Sylvia A. Farnum, William C. Frank, Randall H. Helland, Jonathan P. Kitchin +7 more | 1994-06-28 |
| 5314795 | Thermal-dye-bleach construction comprising a polymethine dye and a thermal carbanion-generating agent | Randall H. Helland, Sylvia A. Farnum, Mark P. Kirk, Jonathan P. Kitchin, Roger A. Mader +6 more | 1994-05-24 |
| 5266452 | Photographic element containing a thermal dye bleach system | Jonathan P. Kitchin, Mark P. Kirk, Randall H. Helland | 1993-11-30 |
| 5258274 | Thermal dye bleach construction sensitive to ultraviolet radiation | Randall H. Helland, George V. D. Tiers | 1993-11-02 |
| 5135842 | Thermal dye bleach construction | Jonathan P. Kitchin, Mark P. Kirk, Randall H. Helland | 1992-08-04 |