- 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: 248
10-year publication summary
22
|
12
|
22
|
14
|
24
|
26
|
23
|
17
|
15
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Siemens AG | 24990 |
39 |
ABB Schweiz AG | 6321 |
28 |
ABB Technology AG | 1301 |
17 |
Hubbell Incorporated | 3052 |
15 |
Alstom Technology Ltd | 1196 |
14 |
Mitsubishi Electric Corporation | 43934 |
13 |
Hitachi Energy Ltd. | 1921 |
11 |
Eaton Intelligent Power Limited | 6113 |
7 |
General Electric Technology GmbH | 1657 |
6 |
LS ELECTRIC Co., Ltd | 506 |
6 |
Siemens Energy Global GmbH & Co. KG | 2775 |
6 |
Cleaveland/price Inc. | 46 |
5 |
ARC Suppression Technologies | 40 |
4 |
Schneider Electric Industries SAS | 1376 |
4 |
Toshiba Corporation | 12017 |
3 |
Ormazabal y CIA, S.L.U. | 19 |
3 |
Supergrid Institute SAS | 35 |
3 |
ABB Technology Ltd | 490 |
3 |
Hitachi Energy Switzerland AG | 327 |
3 |
Hitachi, Ltd. | 16452 |
2 |
Other owners | 56 |