- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 1/50 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
Patent holdings for IPC class H01H 1/50
Total number of patents in this class: 181
10-year publication summary
|
42
|
17
|
17
|
12
|
18
|
15
|
10
|
15
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24990 |
22 |
| Omron Corporation | 6968 |
13 |
| ABB Schweiz AG | 6321 |
8 |
| ARC Suppression Technologies | 40 |
8 |
| Eaton Intelligent Power Limited | 6113 |
8 |
| Schneider Electric USA, Inc. | 1192 |
5 |
| Hitachi Energy Ltd. | 1921 |
5 |
| Mitsubishi Electric Corporation | 43934 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
4 |
| ABB Oy | 178 |
4 |
| Schneider Electric Industries SAS | 1376 |
4 |
| ABB Technology AG | 1301 |
3 |
| Maschinenfabrik Reinhausen GmbH | 749 |
3 |
| Valeo Equipements Electriques Moteur | 1036 |
3 |
| Johnson Electric International AG | 390 |
3 |
| Alstom Technology Ltd | 1196 |
2 |
| ZF Friedrichshafen AG | 6820 |
2 |
| ABB S.p.A. | 459 |
2 |
| Camlin Technologies Limited | 10 |
2 |
| Hongfa Holdings U.S., Inc. | 12 |
2 |
| Other owners | 74 |