- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/662 - Housings or protective screens
Patent holdings for IPC class H01H 33/662
Total number of patents in this class: 553
10-year publication summary
|
38
|
37
|
43
|
40
|
31
|
42
|
47
|
43
|
51
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47602 |
73 |
| Siemens AG | 24200 |
72 |
| Siemens Energy Global GmbH & Co. KG | 3249 |
46 |
| Eaton Intelligent Power Limited | 6158 |
43 |
| ABB Schweiz AG | 7441 |
36 |
| Meidensha Corporation | 929 |
29 |
| G & W Electric Company | 157 |
24 |
| ABB Technology AG | 1233 |
21 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1519 |
17 |
| Hubbell Incorporated | 3403 |
16 |
| Schneider Electric Industries SAS | 1560 |
12 |
| LS ELECTRIC Co., Ltd | 789 |
12 |
| Eaton Corporation | 1807 |
10 |
| Hitachi, Ltd. | 15895 |
10 |
| S&C Electric Company | 182 |
9 |
| Lsis Co., Ltd. | 814 |
8 |
| Maschinenfabrik Reinhausen GmbH | 747 |
6 |
| Secheron SA | 25 |
6 |
| Alstom Technology Ltd | 1057 |
5 |
| S & C Electric Co. | 279 |
5 |
| Other owners | 93 |