DIFF Subgroup
G10H 1/04 by additional modulation
Introduced: September 1968
Full Title
Details of electrophonic musical instruments > Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos > by additional modulation
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class G10,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 5,218
- GOOGLE US 4,644
- FRAUNHOFER DE 4,601
- SONY CORPORATION JP 2,380
- HUAWEI TECHNOLOGIES COMPANY CN 2,179
- YAMAHA CORPORATION 2,120
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 1,974
- MICROSOFT TECHNOLOGY LICENSING US 1,916
- AMAZON TECHNOLOGIES US 1,866
- DOLBY LABORATORIES LICENSING CORPORATION US 1,843
Top Applicants (CPC)
Class G10,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 6,277
- GOOGLE US 5,429
- FRAUNHOFER DE 4,984
- SONY CORPORATION JP 2,808
- HUAWEI TECHNOLOGIES COMPANY CN 2,577
- MICROSOFT TECHNOLOGY LICENSING US 2,382
- DOLBY LABORATORIES LICENSING CORPORATION US 2,123
- QUALCOMM US 2,117
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,049
- AMAZON TECHNOLOGIES US 1,924