- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
Patent holdings for IPC class H02H 3/22
Total number of patents in this class: 564
10-year publication summary
|
32
|
16
|
14
|
13
|
25
|
20
|
19
|
8
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 41951 |
14 |
| Texas Instruments Incorporated | 19473 |
13 |
| Infineon Technologies AG | 8187 |
13 |
| Hubbell Incorporated | 3221 |
11 |
| Hitachi Energy Ltd. | 2174 |
11 |
| Apple Inc. | 54300 |
10 |
| The Boeing Company | 19980 |
10 |
| Eaton Intelligent Power Limited | 5926 |
9 |
| Micron Technology, Inc. | 26169 |
8 |
| Renesas Electronics Corporation | 6063 |
8 |
| Hamilton Sundstrand Corporation | 4824 |
8 |
| Shenzhen Xinguodu Technology Co., Ltd. | 2271 |
8 |
| Samsung Electronics Co., Ltd. | 143555 |
7 |
| Qualcomm Incorporated | 84189 |
7 |
| Illinois Tool Works Inc. | 11382 |
6 |
| Murata Manufacturing Co., Ltd. | 24260 |
6 |
| Sofics BVBA | 41 |
6 |
| Huawei Technologies Co., Ltd. | 110438 |
5 |
| TDK Corporation | 6661 |
5 |
| Semiconductor Components Industries, L.L.C. | 5239 |
5 |
| Other owners | 394 |