- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 33/12 - Auxiliary contacts on to which the arc is transferred from the main contacts
Patent holdings for IPC class H01H 33/12
Total number of patents in this class: 252
10-year publication summary
|
12
|
22
|
14
|
24
|
26
|
23
|
17
|
15
|
14
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24573 |
38 |
| ABB Schweiz AG | 6624 |
27 |
| ABB Technology AG | 1272 |
16 |
| Hubbell Incorporated | 3162 |
15 |
| Hitachi Energy Ltd. | 2232 |
15 |
| Alstom Technology Ltd | 1145 |
14 |
| Mitsubishi Electric Corporation | 44794 |
13 |
| Eaton Intelligent Power Limited | 6296 |
7 |
| LS ELECTRIC Co., Ltd | 602 |
7 |
| General Electric Technology GmbH | 1599 |
6 |
| Siemens Energy Global GmbH & Co. KG | 2828 |
6 |
| ARC Suppression Technologies | 40 |
4 |
| Ormazabal y CIA, S.L.U. | 20 |
4 |
| Schneider Electric Industries SAS | 1437 |
4 |
| Cleaveland/price Inc. | 44 |
4 |
| Toshiba Corporation | 12043 |
3 |
| Supergrid Institute SAS | 37 |
3 |
| ABB Technology Ltd | 482 |
3 |
| Hitachi Energy Switzerland AG | 308 |
3 |
| Hitachi, Ltd. | 15220 |
2 |
| Other owners | 58 |