Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5518876 | Red sensitizers for high silver chloride emulsions | David A. Stegman, Pamela M. Ferguson | 1996-05-21 |
| 5516628 | Silver halide photographic elements with particular blue sensitization | David A. Stegman, Kevin W. Williams, Vishwakarma L. Chand | 1996-05-14 |
| 5512103 | Silver halide color photography element with improved high density contrast and bright low density colors | James L. Edwards, Eric L. Bell, Benjamin Teh-Kung Chen | 1996-04-30 |
| 5492802 | Dye compounds and photographic elements containing such dyes | David A. Stegman | 1996-02-20 |
| 5445913 | Process for the formation of heat image separation elements of improved sensitometry | David S. Bailey | 1995-08-29 |
| 5418118 | Silver halide color photographic element with improved high density contrast and bright low density colors | James L. Edwards, Eric L. Bell, Benjamin Teh-Kung Chen | 1995-05-23 |
| 5418126 | Furan or pyrrole substituted dye compounds and silver halide photographic elements containing such dyes | David A. Stegman, Steven G. Link, Pamela M. Ferguson | 1995-05-23 |
| 5354651 | Hydroxyarylacyl dye compounds and silver halide photographic elements containing such dyes | — | 1994-10-11 |
| 5316904 | Amide substituted dye compounds and silver halide photographic elements containing such dyes | David A. Stegman, Frederick J. Sauter | 1994-05-31 |
| 5298379 | Radiation sensitive element with absorber dye to enhance spectral sensitivity range | Anthony Adin | 1994-03-29 |
| 5135845 | Sensitizing dye for photographic materials | Gladys L. MacIntyre, Wayne W. Weber, II | 1992-08-04 |
| 5108882 | Infrared-sensitive photographic element containing at least two photosensitive layers | Annabel A. Muenter, Anthony Adin | 1992-04-28 |
| 5091298 | Sensitizing dyes for photographic materials | Steven G. Link, David A. Stegman, John D. Mee | 1992-02-25 |
| 5061618 | Infrared-sensitive photographic element | Annabel A. Muenter, David A. Stegman | 1991-10-29 |
| 5013642 | Photographic element | Annabel A. Muenter, Anthony Adin, Nicholas A. Pightling, David Beaumond | 1991-05-07 |
| 4975362 | Infrared sensitizing dye for photographic element | Annabel A. Muenter, David A. Stegman | 1990-12-04 |
| 4933269 | Photographic silver halide element containing infrared filter dyes | David A. Stegman, Ralph W. Jones | 1990-06-12 |
| 4876181 | Photographic elements containing infrared filter dyes | Gary S. Proehl, Anthony D. Gingello, David J. Collett, David A. Stegman, Anthony Adin | 1989-10-24 |
| 4871656 | Photographic silver halide elements containing infrared filter dyes | Anthony D. Gingello, David J. Collett, David A. Stegman, Anthony Adin | 1989-10-03 |
| 4737439 | Photographic compositions and elements including internal latent image silver halide grains and nucleating agents therefor | John P. Freeman, Roy L. Orvis, Karl E. Wiegers | 1988-04-12 |
| T105001 | Adsorbable alkynyl substituted heterocyclic quaternary ammonium salts and applications thereof to silver halide photography | Wilbur S. Gaugh, Karl E. Wiegers | 1985-01-01 |
| T104902 | Adsorbable arylhydrazides and applications thereof to silver halide photography | James A. Friday | 1984-12-04 |
| T104802 | Nonionic alkynyl compounds and applications thereof to silver halide photography | — | 1984-11-06 |
| 4471044 | Silver halide emulsions and photographic elements containing adsorbable alkynyl substituted heterocyclic quaternary ammonium salts | Wilbur S. Gaugh, Karl E. Wiegers | 1984-09-11 |
| 4459347 | Adsorbable arylhydrazides and applications thereof to silver halide photography | James A. Friday | 1984-07-10 |