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CPC Main Group Additional Only
H04R 2410/00

Microphones

4 direct subcodes

Child Classifications

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  • H04R 2410/01 Noise reduction using microphones having different directional characteristics
  • H04R 2410/03 Reduction of intrinsic noise in microphones
  • H04R 2410/05 Noise reduction with a separate noise microphone
  • H04R 2410/07 Mechanical or electrical reduction of wind noise generated by wind passing a microphone

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498