- 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: 259
10-year publication summary
|
17
|
21
|
22
|
18
|
17
|
7
|
11
|
21
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rockwell Automation Technologies, Inc. | 2731 |
31 |
| ABB Schweiz AG | 7299 |
28 |
| Siemens AG | 24294 |
19 |
| Mitsubishi Electric Corporation | 47302 |
16 |
| Hitachi Energy Ltd. | 2394 |
12 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6223 |
11 |
| Amber Semiconductor, Inc. | 38 |
10 |
| Toshiba Corporation | 12532 |
9 |
| Eaton Intelligent Power Limited | 6101 |
8 |
| Lutron Technology Company LLC | 2664 |
6 |
| ABB Technology AG | 1237 |
5 |
| Pass & Seymour, Inc. | 176 |
5 |
| Zonit Structured Solutions, LLC | 119 |
5 |
| ABB Power Grids Switzerland AG | 212 |
4 |
| Siemens Energy Global GmbH & Co. KG | 3151 |
4 |
| GE Aviation Systems Limited | 270 |
3 |
| Maschinenfabrik Reinhausen GmbH | 747 |
3 |
| TE Connectivity Solutions GmbH | 2913 |
3 |
| Johnson Electric International AG | 376 |
3 |
| Honeywell International Inc. | 13558 |
2 |
| Other owners | 72 |