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DIFF Subgroup
G10H 5/14

using electromechanical resonators, e.g. quartz crystals, as frequency determining element

Introduced: January 1980

Title

Titles differ between systems:

IPC: using electromechanical resonators, e.g. quartz crystals, as frequency-determining elements

CPC: using electromechanical resonators, e.g. quartz crystals, as frequency determining element

Full Title

Full titles differ between systems:

IPC:

Instruments in which the tones are generated by means of electronic generators > using electromechanical resonators, e.g. quartz crystals, as frequency-determining elements

CPC:

Instruments in which the tones are generated by means of electronic generators (G10H7/00 takes precedence) > using electromechanical resonators, e.g. quartz crystals, as frequency determining element

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class G10,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 5,218
  2. GOOGLE US 4,644
  3. FRAUNHOFER DE 4,601
  4. SONY CORPORATION JP 2,380
  5. HUAWEI TECHNOLOGIES COMPANY CN 2,179
  6. YAMAHA CORPORATION 2,120
  7. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 1,974
  8. MICROSOFT TECHNOLOGY LICENSING US 1,916
  9. AMAZON TECHNOLOGIES US 1,866
  10. DOLBY LABORATORIES LICENSING CORPORATION US 1,843

Top Applicants (CPC)

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