- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 3/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
Patent holdings for IPC class H02H 3/04
Total number of patents in this class: 775
10-year publication summary
|
56
|
83
|
71
|
73
|
65
|
52
|
50
|
43
|
37
|
38
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eaton Intelligent Power Limited | 6306 |
49 |
| Siemens AG | 23948 |
31 |
| ABB Schweiz AG | 7787 |
24 |
| Schneider Electric USA, Inc. | 1326 |
19 |
| Cilag GmbH International | 6397 |
17 |
| Mitsubishi Electric Corporation | 48546 |
14 |
| Schweitzer Engineering Laboratories, Inc. | 906 |
12 |
| Hitachi Energy Ltd. | 2676 |
12 |
| Siemens Industry, Inc. | 1558 |
11 |
| Hubbell Incorporated | 3466 |
11 |
| Schneider Electric Industries SAS | 1602 |
10 |
| Leviton Manufacturing Co., Inc. | 816 |
9 |
| State Farm Mutual Automobile Insurance Company | 3505 |
9 |
| Robert Bosch GmbH | 44445 |
8 |
| Omicron Electronics GmbH | 282 |
8 |
| Phoenix Contact GmbH & Co. KG | 2297 |
8 |
| ABB S.p.A. | 441 |
7 |
| ABB Research Ltd. | 760 |
7 |
| Ze Chen | 36 |
7 |
| Landis+Gyr Technology, Inc. | 551 |
7 |
| Other owners | 495 |