- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 51/20 - Non-polarised relays with two or more independent armatures
Patent holdings for IPC class H01H 51/20
Total number of patents in this class: 28
10-year publication summary
|
2
|
3
|
0
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fuji Electric FA Components & Systems Co., Ltd. | 250 |
6 |
| Anden Co., Ltd. | 96 |
4 |
| Nippon Soken, Inc. | 333 |
4 |
| Denso Corporation | 23692 |
3 |
| International Business Machines Corporation | 60067 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 29567 |
1 |
| Omron Corporation | 7153 |
1 |
| Eaton Industries (Austria) GmbH | 104 |
1 |
| IBM United Kingdom Limited | 4398 |
1 |
| Lisa Dräxlmaier GmbH | 558 |
1 |
| National University Corporation Nagaoka University of Technology | 133 |
1 |
| NEC Tokin Corporation | 53 |
1 |
| Prestolite Electric Incorporated | 16 |
1 |
| EM Devices Corporation | 16 |
1 |
| Other owners | 0 |