| Patent Number |
Title Of Patent |
Date Issued |
| T999003 |
Shifted photographic dyes and compositions, elements and processes employing them |
October 7, 1980 |
| Shifted photographic dyes which have good storage stability, yet rapidly unblock under processing conditions contain a blocked hydroxy group and a neighboring group that anchimerically assists the hydrolytic cleavage of the blocking group under processing conditions. |
| T105702 |
Nondiffusible photographic couplers and photographic elements and processes employing same |
August 6, 1985 |
| Photographic couplers comprising a coupler moiety and a ballast moiety have advantageous properties when the ballast moiety is terminated with a hydroxyphenylsulfonyl or hydroxyphenylsulfinyl group. The couplers are useful in photographic emulsions and element. |
| 5283163 |
Photographic material and process employing a development inhibitor releasing compound containin |
February 1, 1994 |
| A photographic development inhibitor releasing compound comprises a releasable development inhibitor group comprising an amide group containing a carbon alpha to the amide functionality which is di- or tri-fluorinated. Such a compound is useful in photographic silver halide materials |
| 5118594 |
Photographic elements containing removable couplers |
June 2, 1992 |
| This invention relates to novel photographic dye-forming coupler compounds which are non-diffusible as incorporated in a photographic element, but which, during processing, are converted to a form which is removable from the element if the coupler compound has not reacted with oxidized s |
| 5051343 |
Photographic elements containing removable couplers |
September 24, 1991 |
| This invention relates to novel photographic dye-forming coupler compounds which are non-diffusible as incorporated in a photographic element, but which, during processing, are converted to a form which is removable from the element if the coupler compound has not reacted with oxidized s |
| 4443536 |
Nondiffusible photographic couplers and photographic elements and processes employing same |
April 17, 1984 |
| Photographic couplers comprising a coupler moiety and a ballast moiety have advantageous properties when the ballast moiety is terminated with a hydroxyphenylsulfonyl or hydroxyphenylsulfinyl group. The couplers are useful in photographic emulsions and element. |
| 4234672 |
Shifted photographic dyes and compositions, elements and processes employing them |
November 18, 1980 |
| Shifted photographic dyes which have good storage stability, yet rapidly unblock under processing conditions contain a blocked hydroxy group and a neighboring group that anchimerically assists the hydrolytic cleavage of the blocking group under processing conditions. |
