- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 31/02 - Air-break switches for high tension without arc-extinguishing or arc-preventing means Details
Patent holdings for IPC class H01H 31/02
Total number of patents in this class: 272
10-year publication summary
|
12
|
20
|
13
|
12
|
21
|
17
|
20
|
17
|
17
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hubbell Incorporated | 3253 |
21 |
| LS ELECTRIC Co., Ltd | 685 |
20 |
| Mitsubishi Electric Corporation | 45962 |
17 |
| State Grid Corporation of China | 1364 |
12 |
| Hitachi Energy Ltd. | 2194 |
12 |
| Pinggao Group Co., Ltd. | 100 |
10 |
| ABB Schweiz AG | 6929 |
9 |
| General Electric Technology GmbH | 1371 |
7 |
| Siemens AG | 24520 |
6 |
| Shanghai Liangxin Electrical Co., Ltd | 71 |
6 |
| Henan Pinggao Electric Co.,Ltd. | 25 |
6 |
| Cleaveland/price Inc. | 42 |
6 |
| Alstom Technology Ltd | 1109 |
5 |
| Ema Electromechanics, Inc. | 15 |
5 |
| Changgao Electric Group Co., Ltd. | 10 |
5 |
| Hunan Changgao High Voltage Switchgear Co., Ltd. | 10 |
5 |
| Chint Low Voltage Electrical Technology Co., Ltd. | 58 |
4 |
| S & C Electric Co. | 293 |
3 |
| TE Connectivity Solutions GmbH | 2794 |
3 |
| Eaton Intelligent Power Limited | 5979 |
3 |
| Other owners | 107 |