- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
Patent holdings for IPC class H02H 9/04
Total number of patents in this class: 3634
10-year publication summary
|
276
|
297
|
319
|
291
|
237
|
283
|
244
|
240
|
229
|
109
|
| 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. | 48302 |
150 |
| Texas Instruments Incorporated | 19672 |
94 |
| Samsung Electronics Co., Ltd. | 157719 |
63 |
| Infineon Technologies AG | 8402 |
60 |
| Qualcomm Incorporated | 92196 |
54 |
| Murata Manufacturing Co., Ltd. | 25744 |
45 |
| NPX B.V. | 2820 |
44 |
| Huawei Technologies Co., Ltd. | 123385 |
39 |
| Siemens AG | 24029 |
38 |
| Analog Devices International Unlimited Company | 2023 |
36 |
| Semiconductor Components Industries, L.L.C. | 5262 |
35 |
| NXP USA, Inc. | 4401 |
35 |
| Hitachi Energy Ltd. | 2579 |
34 |
| Rohm Co., Ltd. | 6826 |
32 |
| Eaton Intelligent Power Limited | 6243 |
32 |
| Changxin Memory Technologies, Inc. | 4933 |
32 |
| Phoenix Contact GmbH & Co. KG | 2293 |
30 |
| Robert Bosch GmbH | 44160 |
29 |
| Analog Devices, Inc. | 3317 |
29 |
| ABB Schweiz AG | 7607 |
27 |
| Other owners | 2696 |