- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 31/00 - Air-break switches for high tension without arc-extinguishing or arc-preventing means
Patent holdings for IPC class H01H 31/00
Total number of patents in this class: 259
10-year publication summary
|
14
|
12
|
26
|
14
|
18
|
19
|
17
|
19
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24990 |
37 |
| ABB Schweiz AG | 6321 |
26 |
| ABB Technology AG | 1301 |
21 |
| Hubbell Incorporated | 3052 |
20 |
| Hitachi Energy Ltd. | 1921 |
15 |
| Alstom Technology Ltd | 1196 |
9 |
| Mitsubishi Electric Corporation | 43934 |
8 |
| Eco Electrical Systems | 18 |
6 |
| Schneider Electric Industries SAS | 1376 |
5 |
| Pinggao Group Co., Ltd. | 100 |
5 |
| General Electric Technology GmbH | 1657 |
4 |
| Lsis Co., Ltd. | 834 |
4 |
| State Grid Corporation of China | 1308 |
4 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
4 |
| Hawker Siddeley Switchgear Limited | 8 |
3 |
| TE Connectivity Solutions GmbH | 2580 |
3 |
| Hyundai Electric & Energy Systems Co., Ltd | 52 |
3 |
| Eaton Intelligent Power Limited | 6113 |
3 |
| Ema Electromechanics, Inc. | 17 |
3 |
| Areva T&D AG | 7 |
3 |
| Other owners | 73 |