- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 3/38 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to both voltage and currentEmergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to phase angle between voltage and current
Patent holdings for IPC class H02H 3/38
Total number of patents in this class: 224
10-year publication summary
|
24
|
25
|
20
|
30
|
18
|
11
|
14
|
5
|
17
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24547 |
20 |
| Eaton Intelligent Power Limited | 5972 |
10 |
| Hubbell Incorporated | 3239 |
9 |
| General Electric Technology GmbH | 1459 |
8 |
| ABB Technology AG | 1256 |
6 |
| Schweitzer Engineering Laboratories, Inc. | 913 |
6 |
| Hitachi Energy Ltd. | 2184 |
6 |
| Mitsubishi Electric Corporation | 45860 |
5 |
| ABB Schweiz AG | 6896 |
5 |
| Trane International Inc. | 1175 |
5 |
| ABB Research Ltd. | 893 |
4 |
| WiTricity Corporation | 521 |
4 |
| STMicroelectronics S.r.l. | 3620 |
3 |
| Applied Invention, LLC | 61 |
3 |
| Cummins Power Generation IP, Inc. | 291 |
3 |
| Ellenberger & Poensgen GmbH | 229 |
3 |
| Liebherr-components Biberach GmbH | 223 |
3 |
| Littelfuse, Inc. | 783 |
3 |
| National Oilwell Varco, L.P. | 1648 |
3 |
| Schneider Electric Industries SAS | 1476 |
3 |
| Other owners | 112 |