- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 9/56 - Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
Patent holdings for IPC class H01H 9/56
Total number of patents in this class: 254
10-year publication summary
31
|
17
|
22
|
23
|
19
|
18
|
8
|
11
|
21
|
6
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rockwell Automation Technologies, Inc. | 2716 |
31 |
ABB Schweiz AG | 6917 |
27 |
Siemens AG | 24525 |
18 |
Mitsubishi Electric Corporation | 45946 |
17 |
Hitachi Energy Ltd. | 2192 |
12 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6271 |
11 |
Amber Semiconductor, Inc. | 37 |
10 |
Toshiba Corporation | 12317 |
9 |
Eaton Intelligent Power Limited | 5974 |
8 |
Lutron Technology Company LLC | 2532 |
6 |
ABB Technology AG | 1256 |
5 |
Zonit Structured Solutions, LLC | 114 |
5 |
Pass & Seymour, Inc. | 170 |
4 |
ABB Power Grids Switzerland AG | 212 |
4 |
Siemens Energy Global GmbH & Co. KG | 2937 |
4 |
GE Aviation Systems Limited | 266 |
3 |
TE Connectivity Solutions GmbH | 2793 |
3 |
Johnson Electric International AG | 372 |
3 |
Honeywell International Inc. | 13522 |
2 |
Alstom Technology Ltd | 1109 |
2 |
Other owners | 70 |