- 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: 1882
10-year publication summary
|
128
|
143
|
154
|
150
|
131
|
128
|
114
|
111
|
105
|
77
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Schweiz AG | 7578 |
39 |
| Siemens AG | 24050 |
37 |
| Texas Instruments Incorporated | 19653 |
34 |
| Varian Semiconductor Equipment Associates, Inc. | 1187 |
32 |
| Mitsubishi Electric Corporation | 47943 |
29 |
| Eaton Intelligent Power Limited | 6227 |
27 |
| Rohm Co., Ltd. | 6811 |
26 |
| Littelfuse, Inc. | 793 |
24 |
| Hamilton Sundstrand Corporation | 5017 |
21 |
| Huawei Technologies Co., Ltd. | 122871 |
19 |
| Infineon Technologies AG | 8398 |
18 |
| Sumitomo Electric Industries, Ltd. | 16303 |
17 |
| Rolls-Royce PLC | 3222 |
17 |
| Polytronics Technology Corp. | 87 |
17 |
| Hitachi Energy Ltd. | 2557 |
17 |
| Fuji Electric Co., Ltd. | 5461 |
15 |
| Sumitomo Wiring Systems, Ltd. | 10974 |
13 |
| AutoNetworks Technologies, Ltd. | 7079 |
13 |
| Infineon Technologies Austria AG | 2326 |
12 |
| Yazaki Corporation | 7092 |
12 |
| Other owners | 1443 |