- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency 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: 266
10-year publication summary
|
22
|
14
|
24
|
26
|
23
|
17
|
16
|
14
|
6
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 23996 |
33 |
| ABB Schweiz AG | 7665 |
29 |
| Hitachi Energy Ltd. | 2610 |
19 |
| Hubbell Incorporated | 3457 |
16 |
| ABB Technology AG | 1221 |
15 |
| Alstom Technology Ltd | 1036 |
14 |
| Mitsubishi Electric Corporation | 48172 |
13 |
| LS ELECTRIC Co., Ltd | 862 |
12 |
| General Electric Technology GmbH | 1336 |
7 |
| Eaton Intelligent Power Limited | 6268 |
7 |
| Siemens Energy Global GmbH & Co. KG | 3432 |
6 |
| Schneider Electric Industries SAS | 1595 |
5 |
| ARC Suppression Technologies | 40 |
4 |
| Ormazabal y CIA, S.L.U. | 20 |
4 |
| Toshiba Corporation | 12594 |
3 |
| Supergrid Institute SAS | 38 |
3 |
| ABB Technology Ltd | 424 |
3 |
| Cleaveland/price Inc. | 43 |
3 |
| Hitachi Energy Switzerland AG | 299 |
3 |
| Hitachi, Ltd. | 16163 |
2 |
| Other owners | 65 |