- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 33/66 - Vacuum switches
Patent holdings for IPC class H01H 33/66
Total number of patents in this class: 583
10-year publication summary
|
47
|
49
|
41
|
32
|
27
|
29
|
20
|
31
|
22
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24990 |
90 |
| Mitsubishi Electric Corporation | 43934 |
42 |
| ABB Schweiz AG | 6321 |
40 |
| ABB Technology AG | 1301 |
40 |
| Eaton Intelligent Power Limited | 6113 |
35 |
| S & C Electric Co. | 282 |
21 |
| Hubbell Incorporated | 3052 |
17 |
| Lsis Co., Ltd. | 834 |
17 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
17 |
| Schneider Electric Industries SAS | 1376 |
15 |
| Meidensha Corporation | 823 |
12 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
10 |
| Eaton Corporation | 1839 |
9 |
| S&C Electric Company | 172 |
9 |
| Vacuum Interrupters, Inc. | 14 |
8 |
| Hitachi, Ltd. | 16452 |
7 |
| ABB Research Ltd. | 953 |
7 |
| G & W Electric Company | 122 |
7 |
| Thomas & Betts International LLC | 528 |
7 |
| Japan AE Power Systems Corporation | 29 |
6 |
| Other owners | 167 |