- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/666 - Operating arrangements
Patent holdings for IPC class H01H 33/666
Total number of patents in this class: 689
10-year publication summary
|
49
|
53
|
33
|
51
|
74
|
56
|
74
|
73
|
48
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24542 |
80 |
| Mitsubishi Electric Corporation | 45583 |
78 |
| Eaton Intelligent Power Limited | 5912 |
62 |
| ABB Schweiz AG | 6851 |
57 |
| Siemens Energy Global GmbH & Co. KG | 2896 |
35 |
| LS ELECTRIC Co., Ltd | 649 |
23 |
| S&C Electric Company | 182 |
22 |
| ABB Technology AG | 1256 |
20 |
| S & C Electric Co. | 288 |
17 |
| Hubbell Incorporated | 3217 |
16 |
| G & W Electric Company | 134 |
16 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1445 |
13 |
| JST Power Equipment, Inc. | 53 |
13 |
| Alstom Technology Ltd | 1112 |
12 |
| Schneider Electric Industries SAS | 1468 |
11 |
| Hitachi Energy Ltd. | 2158 |
11 |
| Maschinenfabrik Reinhausen GmbH | 747 |
10 |
| Lsis Co., Ltd. | 817 |
8 |
| Hyosung Heavy Industries Corporation | 252 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6272 |
8 |
| Other owners | 169 |