- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 3/44 - 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 the rate of change of electrical quantities
Patent holdings for IPC class H02H 3/44
Total number of patents in this class: 213
10-year publication summary
|
21
|
15
|
16
|
19
|
20
|
13
|
13
|
11
|
19
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 23983 |
24 |
| Eaton Intelligent Power Limited | 6269 |
15 |
| ABB Schweiz AG | 7680 |
12 |
| Future Systems Besitz GmbH | 33 |
7 |
| Hitachi Energy Ltd. | 2619 |
7 |
| Witricity AI Tech, LLC | 425 |
7 |
| Robert Bosch GmbH | 44252 |
5 |
| Hubbell Incorporated | 3456 |
5 |
| Sensata Technologies, Inc. | 444 |
5 |
| ABB S.p.A. | 439 |
4 |
| Lsis Co., Ltd. | 815 |
4 |
| VoltServer, Inc. | 54 |
4 |
| Bayerische Motoren Werke Aktiengesellschaft | 15393 |
3 |
| Ellenberger & Poensgen GmbH | 231 |
3 |
| Hitachi Energy Switzerland AG | 299 |
3 |
| Mitsubishi Electric Corporation | 48236 |
2 |
| ABB Technology AG | 1220 |
2 |
| ABB Research Ltd. | 780 |
2 |
| Aclara Technologies LLC | 304 |
2 |
| Alpha Technologies Ltd., | 9 |
2 |
| Other owners | 95 |