- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/664 - ContactsArc-extinguishing means, e.g. arcing rings
Patent holdings for IPC class H01H 33/664
Total number of patents in this class: 335
10-year publication summary
|
21
|
28
|
21
|
19
|
30
|
19
|
37
|
34
|
24
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24386 |
52 |
| Mitsubishi Electric Corporation | 46449 |
33 |
| Eaton Intelligent Power Limited | 6023 |
30 |
| Meidensha Corporation | 903 |
24 |
| LS ELECTRIC Co., Ltd | 735 |
20 |
| ABB Schweiz AG | 7055 |
15 |
| Siemens Energy Global GmbH & Co. KG | 3020 |
14 |
| Schneider Electric Industries SAS | 1498 |
12 |
| Eaton Corporation | 1815 |
10 |
| Hubbell Incorporated | 3305 |
9 |
| ABB Technology AG | 1251 |
9 |
| S&C Electric Company | 185 |
9 |
| Alstom Technology Ltd | 1094 |
7 |
| Maschinenfabrik Reinhausen GmbH | 751 |
5 |
| S & C Electric Co. | 292 |
4 |
| Xi'an Jiaotong University | 669 |
4 |
| Hitachi, Ltd. | 15572 |
3 |
| Camlin Technologies Limited | 10 |
3 |
| G & W Electric Company | 146 |
3 |
| Lsis Co., Ltd. | 816 |
3 |
| Other owners | 66 |