- All sections
- H - Electricity
- H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation thereof
- H02M 5/44 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
Patent holdings for IPC class H02M 5/44
Total number of patents in this class: 121
10-year publication summary
28
|
21
|
6
|
17
|
12
|
4
|
8
|
8
|
4
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rockwell Automation Technologies, Inc. | 2547 |
8 |
Mitsubishi Electric Corporation | 43934 |
5 |
Daikin Industries, Ltd. | 9495 |
4 |
ABB Schweiz AG | 6321 |
4 |
Lsis Co., Ltd. | 834 |
4 |
SEW-EURODRIVE GmbH & Co. KG | 1816 |
4 |
Hitachi Energy Ltd. | 1921 |
4 |
LG Electronics Inc. | 69257 |
3 |
Hamilton Sundstrand Corporation | 4525 |
3 |
GE Energy Power Conversion Technology Ltd | 407 |
3 |
General Electric Technology GmbH | 1657 |
3 |
TSi Power Corp. | 4 |
3 |
Kone Oyj | 2000 |
3 |
Vestas Wind Systems A/S | 3459 |
3 |
Rongxin Power Electronic Co., Ltd. | 32 |
3 |
Siemens AG | 24990 |
2 |
Toshiba Corporation | 12017 |
2 |
Hitachi, Ltd. | 16452 |
2 |
Huawei Technologies Co., Ltd. | 100781 |
2 |
Fuji Electric Co., Ltd. | 4750 |
2 |
Other owners | 54 |