IPC Main Group
G03B 23/00 Devices for changing pictures in viewing apparatus or projectors
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- Subclass:
- APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
Filing statistics
IPC G03B 23/00 belongs to the parent subclass G03B, which recorded 200,396 patent applications worldwide between 2013 and 2023. Annual filings grew from 14,054 in 2013 to 16,680 in 2023 (+19%), peaking at 22,766 applications in 2020. The most active applicants in class G03 are CANON (31,416 applications), CANON (17,469 applications) and KYOCERA DOCUMENT SOLUTIONS (9,845 applications).
Source: EPO PATSTAT, worldwide filings
Additional Content
picture pictures Any flat representation, whether transparent or not, e.g. produced by photography, writing, or printing
Related Keywords
photographic SLIDE(S) -changing devices in projectors
4 direct subcodes
Child Classifications
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- G03B 23/02 in which pictures are removed from, and returned to, magazines; Magazines therefor
- G03B 23/08 in which pictures are attached to a movable carrier
- G03B 23/14 Carriers operable to move pictures into, and out of, the projection or viewing position and carrying one or two pictures only in a removable manner
- G03B 23/18 with fade-in and fade-out effects
Top Applicants
Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT
- CANON 31,416
- CANON JP 17,469
- KYOCERA DOCUMENT SOLUTIONS 9,845
- RICOH COMPANY 9,807
- ASML NETHERLANDS NL 9,427
- FUJIFILM JP 7,225
- KONICA MINOLTA CORPORATION 7,216
- FUJI XEROX COMPANY 5,711
- CARL ZEISS SMT DE 4,971
- RICOH COMPANY JP 4,123