Inventor

PLATZER STEPHAN J W

US55 patents

⚠️ This page may combine multiple inventors who share the name “PLATZER STEPHAN J W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PLATZER STEPHAN J W

HOECHST CELANESE CORP

Negative working color proofing process comprising diazo compound and polyvinyl acetal/polyvinyl alcohol/polyvinyl acetate resin

Photopolymerizable, positive working, peel developable, single sheet color proofing system

Transferrable, thermoplastic, antiblocking/adhesive protecting layer for images

Photopolymerizable positive working, peel developable, single sheet color proofing system

Protected color image on substrate with thermal adhesive and antiblocking overlayers

Protective coating for images

Photoimaged article having a colored image protected by a transparent, flexible nonself supporting layer containing a thermoplastic, antiblocking resin

Image transfer to diverse paper stocks

Negative working, peel developable, single sheet color proofing method

Image transfer to diverse paper stocks

Negative working diazo resin color proofing material comprising polyvinyl acetal/polyvinyl, alcohol/polyvinyl acetate resin

Color proofing system having a graduated layer of resins with different solubilities

Solid transfer negative- or positive-working color proofing method on diverse paper stocks

Pigment transfer to photopolymerizable positive-working imaging system

Apparatus and method for separating adherent films

Method of producing an image using a negative working, peel developable, single sheet color proofing system

Positive working color proofing system comprising polyvinyl acetal/polyvinyl alcohol/polyvinyl acetate resin

Method for forming a colored image on a degradable sheet material

Preparation of receiver sheet materials for peel developable, single sheet color proofing system

Photopolymerizable, positive working, peel developable, single sheet color proofing system

Solid transfer negative- or positive-working color proofing method

Coating positive or negative working color proofing system

Colored image on a degradable sheet material and method of formation

AGFA GEVAERT AG

Process for the mechanical roughening of the surface of a printing plate substrate

Process for the production of a lithographic printing plate through selective transfer

Process for the production of a multicolored image and photosensitive material for carrying out this process

Light-sensitive material for producing a multi-color image

Light-sensitive material for producing a multi-color image

Process for the production of a multicolored image

Process for the mechanical roughening of the surface of a printing plate substrate and cylinder brush for carrying out the process

Process for the production of a multicolored image and photosensitive material for carrying out this process

Peel-apart process for the production of a colored image and imaged product produced through the process

HOECHST AG

Apparatus for separating and drawing off a film laminated on a carrier material

Photosensitive material and method for making color-proofing films

Process for the production of a multicolored image and photosensitive material for carrying out this process

Photopolymerizable material and process for the production of a colored image

Apparatus for peeling-off a film laminated on a carrier material

Photosensitive material for the production of a multicolored image

Light-sensitive material for producing a multi-color image

Photosensitive material for the production of a colored image utilizing adhesion promoting layer

HOECHST CO AMERICAN

Negative working diazo color proofing method

Positive working naphthoquinone diazide color proofing transfer process

Positive working naphthoquinone diazide color proofing element with polyvinyl acetate adhesive layer

KODAK POLYCHROME GRAPHICS LLC

Surfactant in precoat for lithographic plates

Photosensitive compositions having mixtures of alkoxy and non-alkoxy diazonium salt containing compounds

BAYER AG

Negative working, peel developable, single sheet color proofing system

Solid transfer negative- or positive-working color proofing element

DYMAX CORP

Light guide exposure device

Radiation-curable fluorescing compositions

AFGA CORP

Peel-developable single sheet color proofing system with laminated adhesive layers