- 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: 260
10-year publication summary
|
17
|
22
|
23
|
19
|
18
|
8
|
11
|
21
|
11
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rockwell Automation Technologies, Inc. | 2803 |
31 |
| ABB Schweiz AG | 7607 |
28 |
| Siemens AG | 24029 |
20 |
| Mitsubishi Electric Corporation | 48018 |
16 |
| Hitachi Energy Ltd. | 2579 |
13 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6178 |
11 |
| Amber Semiconductor, Inc. | 41 |
10 |
| Toshiba Corporation | 12560 |
9 |
| Eaton Intelligent Power Limited | 6243 |
8 |
| Lutron Technology Company LLC | 2749 |
6 |
| ABB Technology AG | 1224 |
5 |
| Pass & Seymour, Inc. | 177 |
5 |
| Zonit Structured Solutions, LLC | 121 |
5 |
| ABB Power Grids Switzerland AG | 212 |
4 |
| Siemens Energy Global GmbH & Co. KG | 3345 |
4 |
| GE Aviation Systems Limited | 273 |
3 |
| Maschinenfabrik Reinhausen GmbH | 582 |
3 |
| TE Connectivity Solutions GmbH | 3044 |
3 |
| Johnson Electric International AG | 379 |
3 |
| Honeywell International Inc. | 12778 |
2 |
| Other owners | 71 |