- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/42 - Driving mechanisms
Patent holdings for IPC class H01H 33/42
Total number of patents in this class: 422
10-year publication summary
|
31
|
33
|
31
|
31
|
31
|
30
|
21
|
21
|
26
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45583 |
63 |
| Siemens AG | 24542 |
56 |
| ABB Schweiz AG | 6851 |
26 |
| Hitachi Energy Ltd. | 2158 |
23 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6272 |
22 |
| Hitachi, Ltd. | 15364 |
16 |
| Siemens Energy Global GmbH & Co. KG | 2896 |
16 |
| Eaton Intelligent Power Limited | 5912 |
15 |
| ABB Technology AG | 1256 |
12 |
| Lsis Co., Ltd. | 817 |
9 |
| Hyosung Heavy Industries Corporation | 252 |
9 |
| LS ELECTRIC Co., Ltd | 649 |
8 |
| Toshiba Energy Systems & Solutions Corp. | 1055 |
7 |
| Hubbell Incorporated | 3217 |
6 |
| General Electric Technology GmbH | 1490 |
6 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1445 |
6 |
| Toshiba Corporation | 12253 |
5 |
| Hyundai Heavy Industries Co., Ltd. | 274 |
5 |
| Southern States, LLC | 67 |
5 |
| State Grid Corporation of China | 1354 |
5 |
| Other owners | 102 |