- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 33/64 - Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
Patent holdings for IPC class H01H 33/64
Total number of patents in this class: 81
10-year publication summary
15
|
12
|
13
|
13
|
10
|
7
|
4
|
0
|
2
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
11 |
ABB Schweiz AG | 6321 |
8 |
Hitachi, Ltd. | 16452 |
7 |
Siemens AG | 24990 |
6 |
General Electric Technology GmbH | 1657 |
6 |
Hitachi Energy Ltd. | 1921 |
6 |
Florida State University Research Foundation, Inc. | 685 |
5 |
Hyundai Electric & Energy Systems Co., Ltd | 52 |
4 |
ABB Technology AG | 1301 |
3 |
Lsis Co., Ltd. | 834 |
3 |
Siemens Energy Global GmbH & Co. KG | 2775 |
3 |
Arkema France | 3790 |
2 |
Alstom Technology Ltd | 1196 |
1 |
Hubbell Incorporated | 3052 |
1 |
ABB Oy | 178 |
1 |
Eaton Electrical IP GmbH & Co. KG | 158 |
1 |
Fuji Electric FA Components & Systems Co., Ltd. | 253 |
1 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
1 |
Hyosung Corporation | 300 |
1 |
Japan AE Power Systems Corporation | 29 |
1 |
Other owners | 9 |