Inventor

Jean-Marie Dewanckele

Inventor

Drongen, BE

Overview

1991–2001

Patent span

Physics

Primary field (CPC G)

Patents· 42 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Cprimary

G03CPhotosensitive materials for photographic purposes39%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices14%

C07DHeterocyclic compounds11%

C07CAcyclic or carbocyclic compounds3%

G03GElectrography3%

B41MPrinting, duplicating, marking, or copying processes2%

C09KMaterials for miscellaneous applications, not provided for elsewhere2%

G21KHandling of particles or ionising radiation not otherwise provided for2%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds1%

PatentTitleYear

6,280,915'Spectrally sensitized tabular grain photographic materials'2001 5,998,087'Photographic material containing a new hydrazide type'1999 5,858,913'Receiving element for use in thermal transfer printing'1999 5,691,121'Method for making negative lith images direct positive images'1997 5,665,515'Method for obtaining a printing plate according to the silver salt diffusion transfer process'1997 5,645,971'Method for making a lithographic printing plate according to the silver salt diffusion transfer process'1997 5,632,930'Class of stabilizing compounds for phosphor screens'1997 5,631,125'Photographic useful group releasing system'1997 5,630,963'Class of stabilizing compounds for phosphor screens'1997 5,627,008'Thermal transfer printing process using a mixture of reducing agents for image-wise reducing a silver source'1997 5,622,803'Negatively charged toner for use in electrostatography'1997 5,599,647'New toning agents for thermographic and photothermographic materials and process'1997 5,589,317'Thermal transfer imaging process'1996 5,569,576'Photographic materials containing polymeric compounds'1996 5,547,809'Thermal transfer imaging system based on the heat transfer of a reducing agent for reducing a silver source to metallic silver'1996 5,536,618'Method for making a lithographic printing plate according to the silver salt diffusion transfer process'1996 5,480,770'Method for making direct-positive photographic images'1996 5,455,154'Photographic recording material'1995 5,449,595'Method for making direct-positive photographic images'1995 5,439,791'Modified gelatin types and hydrophilic elements containing them'1995 5,436,119'Method for rendering silver areas of a silver based printing plate ink acceptant while rendering the hydrophilic areas ink repellant'1995 5,413,897'Silver halide photographic material'1995 5,362,620'Photographic material containing a mixture of silver halide emulsions'1994 5,348,836'Silver halide photographic material'1994 5,340,690'Method for making a lithographic printing plate according to the silver salt diffusion transfer process'1994 5,340,691'Method for making a lithographic printing plate according to the silver salt diffusion transfer process'1994 5,324,622'Silver halide photographic material'1994 5,312,711'Dry electrostatographic developer composition'1994 5,283,156'Method for making a lithographic printing plate according to the silver salt diffusion transfer process'1994 5,254,443'Photographic direct positive material containing a masked benzotriazole stabilizer'1993 5,236,815'Class of masked stabilizers in photographic materials or developing solutions'1993 5,200,295'Method for the production of a silver image'1993 5,200,294'Method for making a lithographic printing plate according to the silver salt diffusion transfer process'1993 5,198,333'Photographic materials containing electron accepting agents'1993 5,188,919'Particulate toner material containing charge controlling compound'1993 5,187,054'Anti-sludging compounds in photographic material'1993 5,156,940'Photographic stabilizers with 1-phenyl-3-pyrazolidinone moieties'1992 5,155,014'Method of developing direct positive silver halide material'1992 5,141,843'Developer liquid for high contrast development'1992 5,122,434'Photographic roomlight materials containing halogen acceptors'1992 5,116,722'Spectrally sensitized silver halide emulsions'1992 5,043,245'Process for the production of a laminated article'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1999Patents assigned to AGFA GEVAERT NV (39)· patent assignee history

1991–2001Based in Drongen, BE· patent location history

1995Patents assigned to AGFA GEVAERT AG (1)· patent assignee history

1999–2001Patents assigned to AGFA GEVAERT (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AGFA GEVAERT NV	39	1991–1999
AGFA GEVAERT	2	1999–2001
AGFA GEVAERT AG	1	1995

Locations

Location	Patents	Span
Drongen, BE	42	1991–2001