- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 7/22 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using multi-position switch, e.g. drum, controlling motor circuit by means of pilot-motor-operated multi-position switch or pilot-motor-operated variable resistance
Patent holdings for IPC class H02P 7/22
Total number of patents in this class: 11
10-year publication summary
1
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0
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0
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0
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1
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1
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1
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3
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3
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1
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2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Black & Decker, Inc. | 2408 |
2 |
Whirlpool Corporation | 4403 |
2 |
Makita Corporation | 2434 |
2 |
Milwaukee Electric Tool Corporation | 4321 |
2 |
Shenzhen zhongdaxin Epoxy plate CO. Ltd. | 16 |
1 |
Woodward, Inc. | 644 |
1 |
Selpro SRL | 2 |
1 |
Other owners | 0 |