CPC Subgroup
G03B 21/14 Details
Full Title
Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00) > Details
Filing statistics
CPC G03B 21/14 belongs to the parent subclass G03B, which recorded 129,790 patent applications worldwide between 2013 and 2023. Annual filings grew from 7,927 in 2013 to 10,170 in 2023 (+28%), peaking at 14,495 applications in 2020. The most active applicants in class G03 are CANON (19,215 applications), CANON (12,916 applications) and ASML NETHERLANDS (10,000 applications).
Source: EPO PATSTAT, worldwide filings
12 direct subcodes
Child Classifications
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- G03B 21/16 Cooling; Preventing overheating
- G03B 21/18 Fire preventing or extinguishing
- G03B 21/20 Lamp housings
- G03B 21/22 Soundproof bodies
- G03B 21/26 Projecting separately subsidiary matter simultaneously with main image
- G03B 21/28 Reflectors in projection beam
- G03B 21/30 adapted to collapse or fold, e.g. for portability
- G03B 21/32 Details specially adapted for motion-picture projection (with film moving continuously through the gate G03B41/02)
- G03B 21/53 Means for automatic focusing, e.g. to compensate thermal effects
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