- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 23/38 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by the armature windings having winding or connection for improving commutation, e.g. equipotential connection
Patent holdings for IPC class H02K 23/38
Total number of patents in this class: 35
10-year publication summary
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3
|
0
|
0
|
3
|
2
|
3
|
3
|
1
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0
|
2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsuba Corporation | 817 |
9 |
| Black & Decker, Inc. | 2404 |
3 |
| Nidec Corporation | 2701 |
3 |
| Johnson Electric International AG | 375 |
3 |
| Robert Bosch GmbH | 43063 |
2 |
| Denso Corporation | 24783 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
2 |
| Valeo Equipements Electriques Moteur | 988 |
2 |
| Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | 239 |
2 |
| Panasonic Corporation | 19966 |
1 |
| Mitsubishi Electric Corporation | 46926 |
1 |
| Makita Corporation | 2479 |
1 |
| Milwaukee Electric Tool Corporation | 4587 |
1 |
| Guangdong Zhaoqing L&V Co. Ltd. | 52 |
1 |
| Hitachi Astemo, Ltd. | 6371 |
1 |
| Cebi Motors S.p.A. | 2 |
1 |
| Other owners | 0 |