- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 31/32 - Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
Patent holdings for IPC class H01H 31/32
Total number of patents in this class: 58
10-year publication summary
|
5
|
11
|
7
|
5
|
5
|
1
|
2
|
1
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24990 |
12 |
| Mitsubishi Electric Corporation | 43934 |
6 |
| Alstom Technology Ltd | 1196 |
6 |
| ABB Technology AG | 1301 |
5 |
| ABB Schweiz AG | 6321 |
4 |
| Hitachi Energy Ltd. | 1921 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| General Electric Technology GmbH | 1657 |
2 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
2 |
| Electro-Mechanical Corporation | 6 |
1 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
1 |
| Lsis Co., Ltd. | 834 |
1 |
| MICROELETTRICA SCIENTIFICA S.p.A. | 23 |
1 |
| Saint Augustin Canada Electric Inc. | 90 |
1 |
| SOCOMEC S.A. | 46 |
1 |
| State Grid Corporation of China | 1308 |
1 |
| Thomas & Betts International LLC | 528 |
1 |
| Vitzrotech Co., Ltd | 10 |
1 |
| Tesla, Inc. | 1519 |
1 |
| Hyundai Electric & Energy Systems Co., Ltd | 52 |
1 |
| Other owners | 5 |