Holographic processes or apparatus using ultrasonic, sonic or infrasonic waves for obtaining holograms; Processes or apparatus for obtaining an optical image from them (G03H1/22 takes precedence)

Filing statistics

CPC G03H 3/00 belongs to the parent subclass G03H, which recorded 14,187 patent applications worldwide between 2013 and 2023. Annual filings grew from 892 in 2013 to 1,218 in 2023 (+37%), peaking at 1,537 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