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IPC Subgroup
G10C 3/28

Transposing devices

Introduced: September 1968

Last revised: January 2006

Full Title

Details or accessories > Transposing devices

Classification Context

Section:
PHYSICS
Class:
MUSICAL INSTRUMENTS; ACOUSTICS
Subclass:
PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS

Filing statistics

IPC G10C 3/28 belongs to the parent subclass G10C, which recorded 3,810 patent applications worldwide between 2013 and 2023. Annual filings grew from 223 in 2013 to 288 in 2023 (+29%), peaking at 466 applications in 2020. The most active applicants in class G10 are SAMSUNG ELECTRONICS COMPANY (5,218 applications), GOOGLE (4,644 applications) and FRAUNHOFER (4,601 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor 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