CPC Main Group
H04R 1/00 Details of transducers,
Filing statistics
CPC H04R 1/00 belongs to the parent subclass H04R, which recorded 161,989 patent applications worldwide between 2013 and 2023. Annual filings grew from 9,314 in 2013 to 13,794 in 2023 (+48%), peaking at 18,978 applications in 2020. The most active applicants in class H04 are HUAWEI TECHNOLOGIES COMPANY (101,476 applications), QUALCOMM (101,139 applications) and SAMSUNG ELECTRONICS COMPANY (96,655 applications).
Source: EPO PATSTAT, worldwide filings
12 direct subcodes
Child Classifications
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- H04R 1/02 Casings; Cabinets Mountings therein (H04R1/28 takes precedence )
- H04R 1/06 Arranging circuit leads; Relieving strain on circuit leads
- H04R 1/08 Mouthpieces; Attachments therefor
- H04R 1/10 Earpieces; Attachments therefor
- H04R 1/12 Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
- H04R 1/14 Throat mountings for microphones
- H04R 1/16 Mounting or connecting stylus to transducer with or without damping means
- H04R 1/20 Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purpose H04R5/00)
- H04R 1/42 Combinations of transducers with fluid-pressure or other non-electrical amplifying means
- H04R 1/44 Special adaptations for subaqueous use, e.g. for hydrophone
- H04R 1/46 Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope (throat mountings H04R1/14)
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498