- 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: 745
10-year publication summary
|
53
|
33
|
51
|
74
|
56
|
75
|
74
|
54
|
47
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24011 |
82 |
| Mitsubishi Electric Corporation | 48097 |
80 |
| Eaton Intelligent Power Limited | 6256 |
69 |
| ABB Schweiz AG | 7640 |
59 |
| Siemens Energy Global GmbH & Co. KG | 3402 |
41 |
| S&C Electric Company | 186 |
25 |
| LS ELECTRIC Co., Ltd | 860 |
25 |
| G & W Electric Company | 164 |
21 |
| ABB Technology AG | 1224 |
20 |
| Hubbell Incorporated | 3454 |
19 |
| S & C Electric Co. | 281 |
18 |
| JST Power Equipment, Inc. | 53 |
14 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1547 |
13 |
| Alstom Technology Ltd | 1039 |
12 |
| Schneider Electric Industries SAS | 1597 |
12 |
| Hitachi Energy Ltd. | 2593 |
11 |
| Maschinenfabrik Reinhausen GmbH | 541 |
10 |
| Hyosung Heavy Industries Corporation | 272 |
9 |
| Lsis Co., Ltd. | 815 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6172 |
8 |
| Other owners | 189 |