- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 33/662 - Housings or protective screens
Patent holdings for IPC class H01H 33/662
Total number of patents in this class: 497
10-year publication summary
|
43
|
39
|
39
|
44
|
43
|
31
|
41
|
48
|
42
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44794 |
67 |
| Siemens AG | 24573 |
66 |
| Eaton Intelligent Power Limited | 6296 |
42 |
| Siemens Energy Global GmbH & Co. KG | 2828 |
36 |
| ABB Schweiz AG | 6624 |
34 |
| Meidensha Corporation | 854 |
27 |
| ABB Technology AG | 1272 |
22 |
| G & W Electric Company | 131 |
18 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1402 |
16 |
| Hubbell Incorporated | 3162 |
12 |
| LS ELECTRIC Co., Ltd | 602 |
12 |
| Eaton Corporation | 1831 |
10 |
| Hitachi, Ltd. | 15220 |
10 |
| S&C Electric Company | 177 |
9 |
| Schneider Electric Industries SAS | 1437 |
9 |
| Lsis Co., Ltd. | 817 |
8 |
| Alstom Technology Ltd | 1145 |
5 |
| Maschinenfabrik Reinhausen GmbH | 744 |
5 |
| Secheron SA | 23 |
5 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6227 |
5 |
| Other owners | 79 |