- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 33/666 - Operating arrangements
Patent holdings for IPC class H01H 33/666
Total number of patents in this class: 629
10-year publication summary
|
61
|
49
|
53
|
33
|
51
|
74
|
56
|
73
|
65
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24990 |
78 |
| Mitsubishi Electric Corporation | 43934 |
74 |
| ABB Schweiz AG | 6321 |
55 |
| Eaton Intelligent Power Limited | 6113 |
51 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
28 |
| LS ELECTRIC Co., Ltd | 506 |
23 |
| ABB Technology AG | 1301 |
20 |
| S&C Electric Company | 172 |
20 |
| Hubbell Incorporated | 3052 |
13 |
| G & W Electric Company | 122 |
13 |
| S & C Electric Co. | 282 |
13 |
| Alstom Technology Ltd | 1196 |
12 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
12 |
| Maschinenfabrik Reinhausen GmbH | 749 |
10 |
| Schneider Electric Industries SAS | 1376 |
10 |
| Hitachi Energy Ltd. | 1921 |
10 |
| Lsis Co., Ltd. | 834 |
8 |
| Hitachi, Ltd. | 16452 |
7 |
| Hyosung Heavy Industries Corporation | 234 |
7 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
7 |
| Other owners | 158 |