Inventor
Christopher G. Demmer
Inventor
Cambridge, GB
Overview
Patents· 15 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 devices21%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds18%
C09DCoating compositions, e.g. paints, varnishes or lacquers15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
Y10TTechnical subjects covered by former us classification10%
H05KPrinted circuits8%
C07CAcyclic or carbocyclic compounds3%
C07DHeterocyclic compounds3%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
C08LCompositions of macromolecular compounds3%
PatentTitleYear
5,080,998'Process for the formation of positive images utilizing electrodeposition of o-quinone diazide compound containing photoresist on conductive surface'19925,002,858'Process for the formation of an image'19914,933,392'Curable epoxide resin compositions'19904,857,437'Process for the formation of an image'19894,839,253'Photosensitive and electrodepositable phenolic resin with quinone diazide sulfonyloxy group'19894,746,399'Method for making metallic patterns'19884,736,055'Oxime sulfonates containing reactive groups'19884,681,923'Modified quinone-diazide group-containing phenolic novolak resins'19874,632,900'Process for the production of images after electrodeposition of positive photoresist on electrically conductive surface'19864,618,564'Process for production of positive images using sulfonic acid precursors'19864,578,438'Preparation of resinous products'19864,507,446'Water-soluble or water-dispersible resinous sulphur or phosphorus containing salts, their preparation, and their use in coatings'19854,410,675'Resinous salts, their preparations, and their use in coatings'19834,400,229'Process for the preparation of phenolic resin-containing dispersions and their use as adhesives'19834,362,853'Resinous salts, their preparation, and their use in coatings'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1992Patents assigned to CIBA GEIGY CORP (15)· patent assignee history
1982–1988Based in Cambridge, GB· patent location history
1983–1989Based in Cherry Hinton, GB· patent location history
1988–1990Based in Saffron Walden, GB· patent location history
1991Based in Essex, GB· patent location history
1992Based in Ickleton, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 15 | 1982–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cambridge, GB | 6 | 1982–1988 |
| Cherry Hinton, GB | 4 | 1983–1989 |
| Saffron Walden, GB | 3 | 1988–1990 |
| Ickleton, GB | 1 | 1992 |
| Essex, GB | 1 | 1991 |