CPC Subgroup
G03B 27/50 with slit or like diaphragm moving over original for progressive exposure (G03B27/34 takes precedence )
Full Title
Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera > with slit or like diaphragm moving over original for progressive exposure (G03B27/34 takes precedence )
Top Applicants
Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT
- CANON JP 19,215
- CANON 12,916
- ASML NETHERLANDS NL 10,000
- FUJIFILM JP 7,814
- SAMSUNG ELECTRONICS COMPANY KR 5,181
- CARL ZEISS SMT DE 5,079
- RICOH COMPANY JP 4,343
- LG INNOTEK COMPANY KR 4,054
- KYOCERA DOCUMENT SOLUTIONS 3,812
- KYOCERA DOCUMENT SOLUTIONS JP 3,682