- 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: 540
10-year publication summary
|
15
|
13
|
13
|
23
|
19
|
19
|
8
|
9
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46507 |
13 |
| Texas Instruments Incorporated | 19555 |
12 |
| Infineon Technologies AG | 8302 |
12 |
| Hitachi Energy Ltd. | 2394 |
12 |
| Hubbell Incorporated | 3359 |
11 |
| Apple Inc. | 56891 |
10 |
| Eaton Intelligent Power Limited | 6101 |
9 |
| Micron Technology, Inc. | 27174 |
8 |
| Hamilton Sundstrand Corporation | 4994 |
8 |
| Samsung Electronics Co., Ltd. | 151017 |
7 |
| Qualcomm Incorporated | 88555 |
7 |
| Shenzhen Xinguodu Technology Co., Ltd. | 2114 |
7 |
| Illinois Tool Works Inc. | 11652 |
6 |
| The Boeing Company | 20101 |
6 |
| Renesas Electronics Corporation | 5903 |
6 |
| Murata Manufacturing Co., Ltd. | 25214 |
6 |
| Huawei Technologies Co., Ltd. | 117695 |
5 |
| TDK Corporation | 6771 |
5 |
| Semiconductor Components Industries, L.L.C. | 5290 |
5 |
| Analog Devices, Inc. | 3350 |
5 |
| Other owners | 380 |