- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 7/04 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for transformers
Patent holdings for IPC class H02H 7/04
Total number of patents in this class: 299
10-year publication summary
|
24
|
18
|
35
|
33
|
24
|
20
|
23
|
29
|
15
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Schweiz AG | 6321 |
16 |
| Hitachi Energy Ltd. | 1921 |
15 |
| Eaton Intelligent Power Limited | 6113 |
12 |
| TechHold, LLC | 45 |
12 |
| S & C Electric Co. | 282 |
11 |
| Schweitzer Engineering Laboratories, Inc. | 920 |
9 |
| Mitsubishi Electric Corporation | 43934 |
8 |
| Emprimus, LLC | 16 |
8 |
| General Electric Technology GmbH | 1657 |
8 |
| Siemens AG | 24990 |
7 |
| ABB Technology AG | 1301 |
7 |
| S&C Electric Company | 172 |
7 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
7 |
| Toshiba Corporation | 12017 |
4 |
| Hubbell Incorporated | 3052 |
4 |
| Phoenix Contact GmbH & Co. KG | 2202 |
4 |
| Qualitrol Company, LLC | 57 |
4 |
| GE Infrastructure Technology, LLC | 5873 |
4 |
| General Electric Company | 18133 |
3 |
| ABB Research Ltd. | 953 |
3 |
| Other owners | 146 |