- 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: 1902
10-year publication summary
|
128
|
143
|
154
|
150
|
131
|
128
|
114
|
114
|
106
|
94
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ABB Schweiz AG | 7703 |
42 |
| Siemens AG | 23972 |
37 |
| Texas Instruments Incorporated | 19639 |
34 |
| Varian Semiconductor Equipment Associates, Inc. | 1179 |
32 |
| Mitsubishi Electric Corporation | 48287 |
29 |
| Eaton Intelligent Power Limited | 6271 |
27 |
| Rohm Co., Ltd. | 6898 |
26 |
| Littelfuse, Inc. | 791 |
24 |
| Hamilton Sundstrand Corporation | 5013 |
21 |
| Infineon Technologies AG | 8418 |
19 |
| Huawei Technologies Co., Ltd. | 124630 |
19 |
| Rolls-Royce PLC | 3224 |
18 |
| Sumitomo Electric Industries, Ltd. | 16345 |
17 |
| Polytronics Technology Corp. | 87 |
17 |
| Hitachi Energy Ltd. | 2627 |
17 |
| Fuji Electric Co., Ltd. | 5526 |
15 |
| Infineon Technologies Austria AG | 2356 |
13 |
| Sumitomo Wiring Systems, Ltd. | 11157 |
13 |
| AutoNetworks Technologies, Ltd. | 7225 |
13 |
| Yazaki Corporation | 7142 |
12 |
| Other owners | 1457 |