- 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: 198
10-year publication summary
|
15
|
21
|
15
|
16
|
19
|
20
|
13
|
13
|
11
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24518 |
23 |
| Eaton Intelligent Power Limited | 5981 |
15 |
| ABB Schweiz AG | 6942 |
10 |
| WiTricity Corporation | 521 |
7 |
| Future Systems Besitz GmbH | 28 |
7 |
| Hitachi Energy Ltd. | 2198 |
6 |
| Robert Bosch GmbH | 42647 |
5 |
| Hubbell Incorporated | 3259 |
4 |
| ABB S.p.A. | 442 |
4 |
| Lsis Co., Ltd. | 816 |
4 |
| Sensata Technologies, Inc. | 389 |
4 |
| VoltServer, Inc. | 46 |
4 |
| Bayerische Motoren Werke Aktiengesellschaft | 14321 |
3 |
| Ellenberger & Poensgen GmbH | 229 |
3 |
| Hitachi Energy Switzerland AG | 303 |
3 |
| Mitsubishi Electric Corporation | 45998 |
2 |
| ABB Technology AG | 1256 |
2 |
| ABB Research Ltd. | 887 |
2 |
| Aclara Technologies LLC | 257 |
2 |
| Alpha Technologies Ltd., | 11 |
2 |
| Other owners | 86 |