- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/666 - Operating arrangements
Patent holdings for IPC class H01H 33/666
Total number of patents in this class: 731
10-year publication summary
|
53
|
33
|
51
|
74
|
56
|
75
|
73
|
54
|
47
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24199 |
81 |
| Mitsubishi Electric Corporation | 47625 |
79 |
| Eaton Intelligent Power Limited | 6162 |
68 |
| ABB Schweiz AG | 7460 |
59 |
| Siemens Energy Global GmbH & Co. KG | 3261 |
38 |
| S&C Electric Company | 182 |
25 |
| LS ELECTRIC Co., Ltd | 789 |
23 |
| G & W Electric Company | 157 |
21 |
| ABB Technology AG | 1233 |
20 |
| Hubbell Incorporated | 3408 |
18 |
| S & C Electric Co. | 279 |
18 |
| JST Power Equipment, Inc. | 53 |
14 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1520 |
13 |
| Alstom Technology Ltd | 1057 |
12 |
| Schneider Electric Industries SAS | 1562 |
12 |
| Hitachi Energy Ltd. | 2502 |
11 |
| Maschinenfabrik Reinhausen GmbH | 747 |
10 |
| Hyosung Heavy Industries Corporation | 265 |
9 |
| Lsis Co., Ltd. | 814 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6207 |
8 |
| Other owners | 184 |