- 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: 3451
10-year publication summary
|
300
|
272
|
286
|
312
|
283
|
231
|
273
|
238
|
232
|
144
|
| 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. | 43064 |
133 |
| Texas Instruments Incorporated | 19450 |
92 |
| Infineon Technologies AG | 8244 |
60 |
| Samsung Electronics Co., Ltd. | 147131 |
58 |
| Qualcomm Incorporated | 86023 |
51 |
| Murata Manufacturing Co., Ltd. | 24650 |
45 |
| NPX B.V. | 2554 |
40 |
| Huawei Technologies Co., Ltd. | 113340 |
39 |
| Siemens AG | 24436 |
38 |
| Semiconductor Components Industries, L.L.C. | 5270 |
36 |
| Analog Devices International Unlimited Company | 1938 |
34 |
| NXP USA, Inc. | 4306 |
33 |
| Rohm Co., Ltd. | 6464 |
32 |
| Changxin Memory Technologies, Inc. | 4927 |
32 |
| Phoenix Contact GmbH & Co. KG | 2290 |
30 |
| Hitachi Energy Ltd. | 2240 |
30 |
| Analog Devices, Inc. | 3375 |
29 |
| Eaton Intelligent Power Limited | 6009 |
29 |
| Renesas Electronics Corporation | 5990 |
26 |
| Robert Bosch GmbH | 42742 |
26 |
| Other owners | 2558 |