- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 51/01 - Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
Patent holdings for IPC class H01H 51/01
Total number of patents in this class: 64
10-year publication summary
|
5
|
6
|
7
|
7
|
2
|
8
|
4
|
3
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LS ELECTRIC Co., Ltd | 602 |
7 |
| Xiamen Hongfa Electric Power Controls Co., Ltd. | 99 |
6 |
| Xiamen Hongfa Electroacoustic Co., Ltd. | 33 |
3 |
| Guangxi Ramway Technology Development Co., Ltd. | 5 |
3 |
| Siemens AG | 24565 |
2 |
| Fujitsu Component Limited | 259 |
2 |
| Huawei Technologies Co., Ltd. | 106762 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
2 |
| Hamilton Sundstrand Corporation | 4728 |
2 |
| Harbin Institute of Technology | 399 |
2 |
| Labinal, LLC | 35 |
2 |
| Microsemi Corporation | 121 |
2 |
| Tripco Limited | 4 |
2 |
| Eaton Intelligent Power Limited | 6300 |
2 |
| Yazaki Corporation | 6466 |
1 |
| Omron Corporation | 7156 |
1 |
| Apollo Fire Detectors Limited | 55 |
1 |
| Fuji Electric FA Components & Systems Co., Ltd. | 250 |
1 |
| Leviton Manufacturing Co., Inc. | 825 |
1 |
| Littelfuse, Inc. | 769 |
1 |
| Other owners | 19 |