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CPC Main Group
G03C 1/00

Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04)

15 direct subcodes

Child Classifications

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  • G03C 1/50 Compositions containing noble metal salts other than silver salts, as photosensitive substances
  • G03C 1/64 Compositions containing iron compounds as photosensitive substances
  • G03C 1/66 Compositions containing chromates as photosensitive substances
  • G03C 1/67 Compositions containing cobalt salts or cobalt compounds as photosensitive substances
  • G03C 1/675 Compositions containing polyhalogenated compounds as photosensitive substances (for photopolymerisable or photocrosslinkable compositions G03F7/028, covered by G03C1/72)
  • G03C 1/685 Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
  • G03C 1/695 Compositions containing azides as the photosensitive substances (for photopolymerisable or photocrosslinkable compositions G03F7/008)
  • G03C 1/705 Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems (used as photoresist G03F7/004)

Top Applicants

Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON JP 19,215
  2. CANON 12,916
  3. ASML NETHERLANDS NL 10,000
  4. FUJIFILM JP 7,814
  5. SAMSUNG ELECTRONICS COMPANY KR 5,181
  6. CARL ZEISS SMT DE 5,079
  7. RICOH COMPANY JP 4,343
  8. LG INNOTEK COMPANY KR 4,054
  9. KYOCERA DOCUMENT SOLUTIONS 3,812
  10. KYOCERA DOCUMENT SOLUTIONS JP 3,682