CPC Subgroup
G03B 41/04 with optical compensator
Full Title
Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor > using non-intermittently running film > with optical compensator
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G03B 41/06 with rotating reflecting member
- G03B 41/08 with rotating transmitting member
- G03B 41/10 with oscillating reflecting member
- G03B 41/12 with oscillating transmitting member
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