Inventor
Chester J. Sobodacha
Inventor
Coventry, RI, US
Overview
Patents· 11 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 devices58%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds16%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
C08LCompositions of macromolecular compounds11%
PatentTitleYear
5,646,218'Novolak resin blends for photoresist applications'19975,374,693'Novolak resin blends for photoresist applications'19945,348,842'Method for producing positive photoresist image utilizing diazo ester of benzolactone ring compound and diazo sulfonyl chloride'19945,248,585'Polyphosphazene binder resins for photoresists comprising as photosensitizers o-quinone diazide esters'19935,221,592'Diazo ester of a benzolactone ring compound and positive photoresist composition and element utilizing the diazo ester'19935,162,510'Process for the preparation of photosensitive compositions containing a mixed ester o-quinone photosensitizer'19925,035,976'Photosensitive article having phenolic photosensitizers containing quinone diazide and acid halide substituents'19914,902,785'Phenolic photosensitizers containing quinone diazide and acidic halide substituents'19904,892,801'Mixed ester O-quinone diazide photosensitizers and process of preparation'19904,732,837'Novel mixed ester O-quinone photosensitizers'19884,732,836'Novel mixed ester O-quinone photosensitizers'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1997Patents assigned to HOECHST CELANESE CORP (11)· patent assignee history
1988–1997Based in Coventry, RI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST CELANESE CORP | 11 | 1988–1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Coventry, RI, US | 11 | 1988–1997 |