- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 1/54 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
Patent holdings for IPC class H01H 1/54
Total number of patents in this class: 162
10-year publication summary
|
11
|
9
|
12
|
13
|
15
|
14
|
10
|
13
|
6
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
22 |
| Omron Corporation | 7264 |
11 |
| Xiamen Hongfa Electric Power Controls Co., Ltd. | 150 |
11 |
| Siemens AG | 24437 |
7 |
| Johnson Electric International (UK) Limited | 10 |
7 |
| Fuji Electric FA Components & Systems Co., Ltd. | 250 |
5 |
| Johnson Electric International AG | 373 |
5 |
| Darfon Electronics Corp. | 262 |
4 |
| Eaton Electrical IP GmbH & Co. KG | 157 |
4 |
| Rail Power Systems GmbH | 19 |
4 |
| LS ELECTRIC Co., Ltd | 722 |
4 |
| Anden Co., Ltd. | 96 |
3 |
| Cummins Power Generation IP, Inc. | 297 |
3 |
| Ellenberger & Poensgen GmbH | 230 |
3 |
| Lsis Co., Ltd. | 816 |
3 |
| Maschinenfabrik Reinhausen GmbH | 748 |
3 |
| Schneider Electric Industries SAS | 1495 |
3 |
| Fujitsu Component Limited | 258 |
2 |
| Mitsubishi Electric Corporation | 46249 |
2 |
| Huawei Technologies Co., Ltd. | 113191 |
2 |
| Other owners | 54 |