- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 31/28 - 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 angularly-movable contact
Patent holdings for IPC class H01H 31/28
Total number of patents in this class: 114
10-year publication summary
|
9
|
11
|
8
|
14
|
6
|
8
|
5
|
4
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hubbell Incorporated | 3227 |
15 |
| Siemens AG | 24568 |
14 |
| Mitsubishi Electric Corporation | 45752 |
11 |
| Hitachi Energy Ltd. | 2177 |
11 |
| ABB Schweiz AG | 6873 |
9 |
| General Electric Technology GmbH | 1457 |
5 |
| Cleaveland/price Inc. | 42 |
5 |
| ABB Technology AG | 1256 |
4 |
| Alstom Technology Ltd | 1112 |
3 |
| Nuventura GmbH | 10 |
3 |
| TE Connectivity Solutions GmbH | 2760 |
2 |
| Eaton Intelligent Power Limited | 5935 |
2 |
| Rockwell Automation Technologies, Inc. | 2716 |
1 |
| Tyco Electronics Canada ULC | 60 |
1 |
| Siemens Industry, Inc. | 1441 |
1 |
| Eaton Electric B.V. | 7 |
1 |
| ABB Technology Oy | 10 |
1 |
| Actuant Corporation | 83 |
1 |
| Aichi Electric Works Co., Ltd. | 4 |
1 |
| AMC | 12 |
1 |
| Other owners | 22 |