- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 1/20 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor by progressive reduction of resistance in series with armature winding
Patent holdings for IPC class H02P 1/20
Total number of patents in this class: 13
10-year publication summary
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
5 |
| Siemens AG | 24990 |
1 |
| LG Electronics Inc. | 69257 |
1 |
| Pratt & Whitney Canada Corp. | 4215 |
1 |
| Continental Automotive GmbH | 5573 |
1 |
| EBM-Papst St. Georgen GmbH & Co. KG | 286 |
1 |
| Electrolux Appliances Aktiebolag | 1216 |
1 |
| Danfoss A/S | 1259 |
1 |
| IC Electronic A/S | 1 |
1 |
| Other owners | 0 |