Inventor
Stanley W. Cowan
Inventor
Rochester, NY, US
Overview
Patents· 53 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Cprimary
G03CPhotosensitive materials for photographic purposes75%
C07DHeterocyclic compounds8%
C07CAcyclic or carbocyclic compounds4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments3%
PatentTitleYear
6,197,071'Formulations for dyeing keratin fibers comprising a pyrazolotriazole coupler and oxidation base'20016,143,485'Pyrazolotriazle dye-forming photographic coupler'20006,140,031'Photographic element containing a cyclic azole coupler and an anti-fading agent containing a combination of functionalities'20006,140,033'Photographic element'20006,136,522'Photographic element containing pyrazoloazole coupler and a specific anti-fading combination'20006,071,686'Photographic element containing pyrazoloazole coupler and a specific anti-fading combination'20006,071,684'Photographic element containing specific magenta coupler'20006,048,680'Photographic element containing pyrazoloazole coupler and a specific anti-fading combination'20006,040,126'Photographic yellow dye-forming couplers'20006,030,760'Photographic element containing specific magenta coupler and anti-fading agent'20006,004,738'Photographic elements containing cyan dye-forming coupler, coupler solvent and bisphenol derivative'19995,998,122'Photographic element containing pyrazoloazole magenta coupler and a specific anti-fading agent'19995,976,777'Photographic element containing magenta coupler with particular substituent'19995,965,342'Photographic elements containing specified cyan dye-forming couplers for improved heat and light stability'19995,962,198'Photographic elements containing cyan dye-forming coupler having a particular formula'19995,888,716'Photographic element containing improved coupler set'19995,851,748'Photographic materials and process comprising a particular acylacetanilide yellow dye-forming coupler'19985,834,166'Photographic element containing a particular cyan dye-forming coupler'19985,811,230'Photographic material comprising a bicyclic pyrazolo coupler'19985,726,002'Photographic element containing a particular cyan coupler dispersed in a phenolic solvent'19985,698,386'Photographic dye-forming coupler, emulsion layer, element, and process'19975,686,235'Photographic elements containing cyan dye-forming coupler having a sulfone ballast group'19975,681,689'Photographic material containing acrylate or acrylamide based yellow dye-forming couplers'19975,677,118'Photographic element containing a recrystallizable 5-pyrazolone photographic coupler'19975,674,666'Photographic elements containing new cyan dye-forming coupler providing improved color reproduction'19975,670,302'Photographic elements containing new magenta dye-forming couplers'19975,667,952'Photographic material and process comprising a bicyclic pyrazolo coupler'19975,654,132'Photographic materials and process comprising ureido naphtholic cyan couplers'19975,614,357'Photographic element containing a particular cyan coupler bearing a sulfonyl containing ballast'19975,609,996'Photographic emulsion layer containing pyrazoloazole coupler exhibiting improved dye light fade'19975,576,150'Photographic dye-forming coupler, emulsion layer, element, and process'19965,457,020'Photographic material and process comprising a bicyclic pyrazolo coupler'19955,455,147'Methods of forming polymeric couplers'19955,427,898'Yellow couplers having an arloxy coupling-off group which contains an ortho polarizable functional group'19955,399,467'Photographic couplers having a ballast containing a sulfone or sulfoxide group'19955,382,502'Hydroxyquinoline cyan couplers and their process of production'19955,378,587'Photographic material and process comprising a bicyclic pyrazolo coupler'19955,360,710'Color photographic materials containing polymeric couplers'19945,360,713'Yellow dye-forming couplers and color photographic elements containing these couplers'19945,358,836'Photographic elements containing new magenta-dye-forming tris couplers'19945,358,837'Photographic elements containing new magenta-dye-forming bis couplers'19945,358,829'Photographic material and process comprising a bicyclic pyrazolo coupler'19945,358,835'Photographic elements containing new yellow-dye-forming tris couplers'19945,358,838'Photographic elements containing new yellow-dye-forming tris couplers'19945,340,708'Photographic elements containing new dye-forming tris couplers'19945,250,400'Photographic material and process comprising a pyrazolotriazole coupler'19935,237,030'Polymeric couplers prepared in the presence of a coupler solvent'19935,234,805'Photographic material and process comprising a pyrazolotriazole coupler'19935,100,772'Magenta dye forming coupler for photographic material'19924,992,359'Polymeric couplers'19914,914,005'Photographic element containing a cyan dye forming coupler'19904,804,620'Photographic material containing a novel polymeric dye-forming coupler'19894,093,462'2,5-Bis(secondary amino) oxa- and thiadiazole photographic developing agents'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2001Patents assigned to EASTMAN KODAK CO (53)· patent assignee history
1978–2001Based in Rochester, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN KODAK CO | 53 | 1978–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, New York, US | 53 | 1978–2001 |