- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
- H02P 7/281 - 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 discharge tubes or semiconductor devices using semiconductor devices the DC motor being operated in four quadrants
Patent holdings for IPC class H02P 7/281
Total number of patents in this class: 4
10-year publication summary
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0
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0
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1
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0
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0
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1
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0
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2
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0
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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
|
|---|---|---|
| Denso Corporation | 24431 |
1 |
| Intuitive Surgical Operations, Inc. | 4100 |
1 |
| Kabushiki Kaisha Tokai Rika Denki Seisakusho | 1803 |
1 |
| Bode - Die Tür GmbH | 68 |
1 |
| Other owners | 0 |