- 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: 536
10-year publication summary
|
43
|
38
|
37
|
43
|
40
|
30
|
42
|
47
|
42
|
42
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 46397 |
72 |
| Siemens AG | 24409 |
71 |
| Eaton Intelligent Power Limited | 6014 |
44 |
| Siemens Energy Global GmbH & Co. KG | 3011 |
44 |
| ABB Schweiz AG | 7039 |
36 |
| Meidensha Corporation | 899 |
29 |
| G & W Electric Company | 146 |
23 |
| ABB Technology AG | 1251 |
21 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1464 |
17 |
| Hubbell Incorporated | 3301 |
16 |
| LS ELECTRIC Co., Ltd | 734 |
12 |
| Schneider Electric Industries SAS | 1498 |
11 |
| Eaton Corporation | 1815 |
10 |
| Hitachi, Ltd. | 15556 |
10 |
| S&C Electric Company | 185 |
9 |
| Lsis Co., Ltd. | 816 |
8 |
| Secheron SA | 25 |
6 |
| Alstom Technology Ltd | 1094 |
5 |
| Maschinenfabrik Reinhausen GmbH | 751 |
5 |
| S & C Electric Co. | 292 |
5 |
| Other owners | 82 |