- All sections
- H - Electricity
- H02H - Emergency protective circuit arrangements
- H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Patent holdings for IPC class H02H 9/02
Total number of patents in this class: 1795
10-year publication summary
|
137
|
125
|
140
|
148
|
149
|
128
|
126
|
112
|
103
|
92
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24337 |
38 |
| ABB Schweiz AG | 7162 |
35 |
| Texas Instruments Incorporated | 19493 |
34 |
| Varian Semiconductor Equipment Associates, Inc. | 1226 |
32 |
| Mitsubishi Electric Corporation | 46870 |
28 |
| Rohm Co., Ltd. | 6553 |
25 |
| Eaton Intelligent Power Limited | 6049 |
25 |
| Littelfuse, Inc. | 788 |
24 |
| Hamilton Sundstrand Corporation | 4954 |
20 |
| Huawei Technologies Co., Ltd. | 115556 |
18 |
| Infineon Technologies AG | 8279 |
17 |
| Sumitomo Electric Industries, Ltd. | 15750 |
16 |
| Polytronics Technology Corp. | 86 |
16 |
| Hitachi Energy Ltd. | 2320 |
15 |
| Rolls-Royce PLC | 3141 |
14 |
| Fuji Electric Co., Ltd. | 5243 |
13 |
| Infineon Technologies Austria AG | 2214 |
12 |
| Yazaki Corporation | 6775 |
12 |
| Sumitomo Wiring Systems, Ltd. | 10555 |
12 |
| AutoNetworks Technologies, Ltd. | 6739 |
12 |
| Other owners | 1377 |