- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 21/18 - Movable partsContacts mounted thereon
Patent holdings for IPC class H01H 21/18
Total number of patents in this class: 15
10-year publication summary
|
3
|
0
|
0
|
3
|
1
|
1
|
2
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 33507 |
2 |
| Honda Motor Co., Ltd. | 25871 |
1 |
| Honeywell International Inc. | 12786 |
1 |
| Huawei Device Co., Ltd. | 2753 |
1 |
| Wistron Corporation | 2399 |
1 |
| Omron Corporation | 7331 |
1 |
| Tsinghua University | 6110 |
1 |
| Helen of Troy Limited | 183 |
1 |
| Nuctech Company Limited | 1440 |
1 |
| Shanghai Baicheng Electric Equipment Manufacture Co., Ltd. | 15 |
1 |
| Framatome GmbH | 250 |
1 |
| Alps Alpine Co., Ltd. | 2232 |
1 |
| Johnson Electric (Shenzhen) Co., Ltd. | 4 |
1 |
| Huaneng YiMin Coal-power Co., Ltd. | 22 |
1 |
| Other owners | 0 |