- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency 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: 261
10-year publication summary
|
8
|
12
|
20
|
13
|
12
|
21
|
16
|
20
|
15
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LS ELECTRIC Co., Ltd | 506 |
20 |
| Hubbell Incorporated | 3052 |
19 |
| Mitsubishi Electric Corporation | 43934 |
17 |
| State Grid Corporation of China | 1308 |
12 |
| Hitachi Energy Ltd. | 1921 |
11 |
| Pinggao Group Co., Ltd. | 100 |
10 |
| ABB Schweiz AG | 6321 |
9 |
| General Electric Technology GmbH | 1657 |
7 |
| Siemens AG | 24990 |
6 |
| Alstom Technology Ltd | 1196 |
6 |
| Henan Pinggao Electric Co.,Ltd. | 25 |
6 |
| Cleaveland/price Inc. | 46 |
6 |
| Eaton Intelligent Power Limited | 6113 |
5 |
| Ema Electromechanics, Inc. | 17 |
5 |
| Changgao Electric Group Co., Ltd. | 10 |
5 |
| Hunan Changgao High Voltage Switchgear Co., Ltd. | 10 |
5 |
| Shanghai Liangxin Electrical Co., Ltd | 68 |
4 |
| TE Connectivity Solutions GmbH | 2580 |
3 |
| Henan Ping Gao Electric Co., Ltd | 19 |
3 |
| International Business Machines Corporation | 60644 |
2 |
| Other owners | 100 |