- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
Patent holdings for IPC class H02P 27/04
Total number of patents in this class: 1188
10-year publication summary
100
|
104
|
73
|
86
|
65
|
67
|
49
|
62
|
39
|
18
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
112 |
Halliburton Energy Services, Inc. | 20165 |
42 |
Denso Corporation | 23338 |
33 |
Aisin AW Co., Ltd. | 2430 |
32 |
Daikin Industries, Ltd. | 9495 |
25 |
Kabushiki Kaisha Yaskawa Denki | 1468 |
24 |
Nissan Motor Co., Ltd. | 12249 |
23 |
Eaton Intelligent Power Limited | 6113 |
20 |
FANUC Corporation | 5803 |
18 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
17 |
Honda Motor Co., Ltd. | 24537 |
16 |
Rockwell Automation Technologies, Inc. | 2547 |
16 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
15 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
14 |
JTEKT Corporation | 2423 |
12 |
Lsis Co., Ltd. | 834 |
12 |
Hitachi Automotive Systems, Ltd. | 3970 |
11 |
GM Global Technology Operations LLC | 13620 |
11 |
Meidensha Corporation | 823 |
11 |
Hitachi, Ltd. | 16452 |
10 |
Other owners | 714 |