H04R 1/00 Details of transducers
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
Filing statistics
IPC H04R 1/00 belongs to the parent subclass H04R, which recorded 244,714 patent applications worldwide between 2013 and 2023. Annual filings grew from 13,395 in 2013 to 22,792 in 2023 (+70%), peaking at 30,255 applications in 2020. The most active applicants in class H04 are QUALCOMM (97,396 applications), HUAWEI TECHNOLOGIES COMPANY (96,502 applications) and SAMSUNG ELECTRONICS COMPANY (86,981 applications).
Source: EPO PATSTAT, worldwide filings
Additional Content
Glossary
Casing Cabinet Cabinets Casings housing, enclosure
Limiting references
Mountings specially adapted for telephone equipment Diaphragms for electromechanical transducers Details of transducers characterised by the nature of the transducer
11 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04R 1/02 Casings; Cabinets; Mountings therein
- H04R 1/06 Arranging circuit leads; Relieving strain on circuit leads
- H04R 1/08 Mouthpieces; Attachments therefor
- H04R 1/1 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 1/2 Arrangements for obtaining desired frequency or directional characteristics
- 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
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327