- 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: 521
10-year publication summary
|
16
|
14
|
13
|
25
|
20
|
19
|
8
|
12
|
5
|
1
|
| 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. | 48438 |
13 |
| Texas Instruments Incorporated | 19653 |
12 |
| Hitachi Energy Ltd. | 2586 |
12 |
| Infineon Technologies AG | 8402 |
11 |
| Hubbell Incorporated | 3448 |
11 |
| Apple Inc. | 58885 |
10 |
| Eaton Intelligent Power Limited | 6257 |
10 |
| Hamilton Sundstrand Corporation | 5014 |
8 |
| Samsung Electronics Co., Ltd. | 157946 |
7 |
| Qualcomm Incorporated | 92416 |
7 |
| Shenzhen Xinguodu Technology Co., Ltd. | 1933 |
7 |
| The Boeing Company | 20163 |
6 |
| Renesas Electronics Corporation | 5864 |
6 |
| Murata Manufacturing Co., Ltd. | 25758 |
6 |
| EMP Shield Inc. | 11 |
6 |
| Illinois Tool Works Inc. | 11866 |
5 |
| Micron Technology, Inc. | 27675 |
5 |
| Huawei Technologies Co., Ltd. | 123543 |
5 |
| Semiconductor Components Industries, L.L.C. | 5263 |
5 |
| Analog Devices, Inc. | 3321 |
5 |
| Other owners | 364 |