Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5741633 | Attachment of gelatin-grafted polymer particles to pre-precipitated silver halide grains | John D. Lewis, Tienteh Chen, Thomas Joseph Dannhauser, Pranab Bagchi | 1998-04-21 |
| 5693461 | Mixed packet color photographic system | Pranab Bagchi, Tienteh Chen, Thomas Joseph Dannhauser, John D. Lewis | 1997-12-02 |
| 5543283 | Attachment of gelatin-grafted plymer particles to pre-precipitated silver halide grains | John D. Lewis, Tienteh Chen, Thomas Joseph Dannhauser, Pranab Bagchi | 1996-08-06 |
| 5503972 | Gelatin-grafted-polymer particles as peptizer for silver halide emulsions | John D. Lewis, Thomas Joseph Dannhauser, Tienteh Chen, Pranab Bagchi | 1996-04-02 |
| 5441865 | Gelatin-grafted-polymer particles as peptizer for silver halide emulsions | John D. Lewis, Thomas Joseph Dannhauser, Tienteh Chen, Pranab Bagchi | 1995-08-15 |
| 5399480 | Attachment of gelatin-grafted polymer particles to pre-precipitated silver halide grains | John D. Lewis, Tienteh Chen, Thomas Joseph Dannhauser, Pranab Bagchi | 1995-03-21 |
| 5364754 | Silver halide photographic emulsions precipitated in the presence of organic dichalcogenides | Sang H. Kim, Anthony Adin, Richard Beal, Jerzy A. Budz, Wai K. Lam | 1994-11-15 |