- 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: 427
10-year publication summary
|
32
|
29
|
31
|
31
|
30
|
21
|
21
|
26
|
9
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47338 |
63 |
| Siemens AG | 24286 |
54 |
| ABB Schweiz AG | 7313 |
26 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6222 |
24 |
| Hitachi Energy Ltd. | 2400 |
23 |
| Siemens Energy Global GmbH & Co. KG | 3160 |
17 |
| Hitachi, Ltd. | 15803 |
16 |
| Eaton Intelligent Power Limited | 6110 |
15 |
| ABB Technology AG | 1236 |
12 |
| Hyosung Heavy Industries Corporation | 264 |
10 |
| Lsis Co., Ltd. | 815 |
9 |
| Toshiba Energy Systems & Solutions Corp. | 1123 |
9 |
| LS ELECTRIC Co., Ltd | 765 |
9 |
| Hubbell Incorporated | 3358 |
7 |
| General Electric Technology GmbH | 1356 |
6 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1504 |
6 |
| Toshiba Corporation | 12536 |
5 |
| Hyundai Heavy Industries Co., Ltd. | 274 |
5 |
| Southern States, LLC | 77 |
5 |
| State Grid Corporation of China | 1384 |
5 |
| Other owners | 101 |