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CPC Subgroup Additional Only
G10K 2210/32121

Fluid amplifiers, e.g. modulated gas flow speaker using electrovalves

Full Title

Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups > Means > Physical > Actuator details, e.g. composition or microstructure > Fluid amplifiers, e.g. modulated gas flow speaker using electrovalves

Top Applicants

Top 10 applicants by patent filingsfor class G10, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 6,277
  2. GOOGLE US 5,429
  3. FRAUNHOFER DE 4,984
  4. SONY CORPORATION JP 2,808
  5. HUAWEI TECHNOLOGIES COMPANY CN 2,577
  6. MICROSOFT TECHNOLOGY LICENSING US 2,382
  7. DOLBY LABORATORIES LICENSING CORPORATION US 2,123
  8. QUALCOMM US 2,117
  9. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,049
  10. AMAZON TECHNOLOGIES US 1,924