- 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: 236
10-year publication summary
|
22
|
18
|
28
|
17
|
10
|
12
|
4
|
17
|
12
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24236 |
23 |
| Hubbell Incorporated | 3405 |
10 |
| Eaton Intelligent Power Limited | 6154 |
10 |
| General Electric Technology GmbH | 1345 |
7 |
| Schweitzer Engineering Laboratories, Inc. | 911 |
7 |
| Hitachi Energy Ltd. | 2461 |
7 |
| Mitsubishi Electric Corporation | 47556 |
5 |
| ABB Schweiz AG | 7429 |
5 |
| ABB Technology AG | 1233 |
5 |
| Trane International Inc. | 1214 |
5 |
| Sumitomo Electric Industries, Ltd. | 16071 |
4 |
| Sumitomo Wiring Systems, Ltd. | 10767 |
4 |
| ABB Research Ltd. | 823 |
4 |
| AutoNetworks Technologies, Ltd. | 6922 |
4 |
| Witricity AI Tech, LLC | 412 |
4 |
| STMicroelectronics S.r.l. | 3407 |
3 |
| Applied Invention, LLC | 59 |
3 |
| Cummins Power Generation IP, Inc. | 315 |
3 |
| Ellenberger & Poensgen GmbH | 226 |
3 |
| Liebherr-components Biberach GmbH | 223 |
3 |
| Other owners | 117 |