Inventor
Stephan J. W. Platzer
Inventor
Califon, NJ, US
Overview
Patents· 60 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices56%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
B41NPrinting plates or foils6%
Y10TTechnical subjects covered by former us classification5%
B24BMachines, devices, or processes for grinding or polishing2%
B26DCutting2%
B29CShaping or joining of plastics2%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%
G02BOptical elements, systems or apparatus2%
B41CProcesses for the manufacture or reproduction of printing surfaces1%
PatentTitleYear
8,846,981'1,1-di[(alkylphenoxy)ethoxy]cyclohexanes'20148,632,943'Near-infrared sensitive, positive-working, image forming composition and photographic element containing a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane'20148,052,829'Photopolymerizable compositions containing an oxonol dye'20117,892,386'Radiation-curable fluorescing compositions'20117,802,910'Light guide exposure device'20107,671,543'Light exposure control device and apparatus'20106,861,196'Photosensitive compositions having mixtures of alkoxy and non-alkoxy diazonium salt containing compounds'20056,638,679'Photosensitive compositions having mixtures of alkoxy and non-alkoxy diazonium salt containing compounds'20036,458,503'Fluorinated aromatic acetal polymers and photosensitive compositions containing such polymers'20026,261,734'Peel-developable single sheet color proofing system with laminated adhesive layers'20015,900,345'Surfactant in precoat for lithographic plates'19995,860,184'Process for the mechanical roughening of the surface of a printing plate substrate and cylinder brush for carrying out the process'19995,792,588'Negative working, peel developable, single sheet color proofing system'19985,775,977'Process for the mechanical roughening of the surface of a printing plate substrate'19985,725,988'Solid transfer negative- or positive-working color proofing element'19985,725,992'Process for the production of a multicolored image and photosensitive material for carrying out this process'19985,705,313'Process for the production of a lithographic printing plate through selective transfer'19985,693,449'Process for the production of a multicolored image and photosensitive material for carrying out this process'19975,683,852'Light-sensitive material for producing a multi-color image'19975,681,682'Light-sensitive material for producing a multi-color image'19975,627,009'Process for the production of a multicolored image'19975,545,506'Method of producing an image using a negative working, peel developable, single sheet color proofing system'19965,534,373'Peel-apart process for the production of a colored image and imaged product produced through the process'19965,534,384'Photosensitive material for the production of a multicolored image'19965,529,883'Photosensitive material for the production of a colored image utilizing adhesion promoting layer'19965,492,791'Photosensitive material and method for making color-proofing films'19965,478,694'Process for the production of a multicolored image and photosensitive material for carrying out this process'19955,443,939'Light-sensitive material for producing a multi-color image'19955,374,184'Photopolymerizable material and process for the production of a colored image'19945,282,918'Apparatus for separating and drawing off a film laminated on a carrier material'19945,269,873'Apparatus for peeling-off a film laminated on a carrier material'19935,258,247'Photoimaged article having a colored image protected by a transparent, flexible nonself supporting layer containing a thermoplastic, antiblocking resin'19935,236,806'Photopolymerizable, positive working, peel developable, single sheet color proofing system'19935,213,941'Solid transfer negative- or positive-working color proofing method'19935,192,630'Image transfer to diverse paper stocks'19935,183,723'Colored image on a degradable sheet material and method of formation'19935,108,868'Negative working, peel developable, single sheet color proofing method'19925,100,757'Method for forming a colored image on a degradable sheet material'19925,094,931'Image transfer to diverse paper stocks'19925,080,996'Color proofing system having a graduated layer of resins with different solubilities'19925,053,310'Negative working diazo resin color proofing material comprising polyvinyl acetal/polyvinyl, alcohol/polyvinyl acetate resin'19915,049,476'Photopolymerizable, positive working, peel developable, single sheet color proofing system'19915,039,590'Coating positive or negative working color proofing system'19915,008,174'Color proofing system having a graduated layer of resins with different solubilities'19914,999,266'Protected color image on substrate with thermal adhesive and antiblocking overlayers'19914,948,693'Positive working color proofing system comprising polyvinyl acetal/polyvinyl alcohol/polyvinyl acetate resin'19904,937,168'Solid transfer negative- or positive-working color proofing method on diverse paper stocks'19904,935,331'Pigment transfer to photopolymerizable positive-working imaging system'19904,910,120'Preparation of receiver sheet materials for peel developable, single sheet color proofing system'19904,902,594'Transferrable, thermoplastic, antiblocking/adhesive protecting layer for images'19904,895,787'Photopolymerizable positive working, peel developable, single sheet color proofing system'19904,808,508'Negative working color proofing process comprising diazo compound and polyvinyl acetal/polyvinyl alcohol/polyvinyl acetate resin'19894,772,533'Positive working naphthoquinone diazide color proofing element with polyvinyl acetate adhesive layer'19884,752,346'Apparatus and method for separating adherent films'19884,751,166'Negative working diazo color proofing method'19884,719,169'Protective coating for images'19884,659,642'Positive working naphthoquinone diazide color proofing transfer process'19874,650,738'Negative working diazo color proofing method'19874,581,996'Aluminum support useful for lithography'19864,427,500'Method for producing an aluminum support useful for lithography'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1988Patents assigned to HOECHST CO AMERICAN (5)· patent assignee history
1984–1986Based in New Brunswick, NJ, US· patent location history
1987–1999Based in Califon, NJ, US· patent location history
1988–1996Patents assigned to HOECHST CELANESE CORP (25)· patent assignee history
1991–2001Based in Eltville, DE· patent location history
1993–1996Patents assigned to HOECHST AG (8)· patent assignee history
1993–1997Based in Eltville-Erbach, DE· patent location history
1996–1999Patents assigned to AGFA GEVAERT AG (9)· patent assignee history
1999–2014Based in Longmeadow, MA, US· patent location history
2010–2011Patents assigned to DYMAX CORP (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST CELANESE CORP | 25 | 1988–1996 |
| AGFA GEVAERT AG | 9 | 1996–1999 |
| HOECHST AG | 8 | 1993–1996 |
| HOECHST CO AMERICAN | 5 | 1984–1988 |
| DYMAX CORP | 4 | 2010–2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Califon, New Jersey, US | 30 | 1987–1999 |
| Eltville, DE | 15 | 1991–2001 |
| Longmeadow, Massachusetts, US | 10 | 1999–2014 |
| Eltville-Erbach, DE | 3 | 1993–1997 |
| New Brunswick, New Jersey, US | 2 | 1984–1986 |