Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2009-04-10
2011-12-27
Seidleck, James J (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C525S434000, C528S026000, C562S453000
Reexamination Certificate
active
08084512
ABSTRACT:
The present invention relates to a water soluble photosensitive polyimide polymer, preparation thereof and a photoresist composition containing the same. The water soluble photosensitive polyimide polymer is characterized by having repeat units represented by the following formula (I):the other symbols are defined in the specification].
REFERENCES:
patent: 5587275 (1996-12-01), Kato
patent: 6025113 (2000-02-01), Kikkawa et al.
Hwang Kuen Yuan
Tu An Pang
Wang Jen Fu
Wu Sheng Yen
Chang Chun Plastics Co. Ltd.
Listvoyb Gregory
Muncy Geissler Olds & Lowe, PLLC
Seidleck James J
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