- 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: 1777
10-year publication summary
|
137
|
125
|
140
|
148
|
149
|
128
|
125
|
112
|
103
|
78
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24346 |
38 |
| ABB Schweiz AG | 7085 |
35 |
| Texas Instruments Incorporated | 19450 |
34 |
| Varian Semiconductor Equipment Associates, Inc. | 1231 |
32 |
| Mitsubishi Electric Corporation | 46618 |
28 |
| Rohm Co., Ltd. | 6520 |
25 |
| Eaton Intelligent Power Limited | 6040 |
25 |
| Littelfuse, Inc. | 792 |
24 |
| Hamilton Sundstrand Corporation | 4932 |
20 |
| Huawei Technologies Co., Ltd. | 114462 |
18 |
| Infineon Technologies AG | 8265 |
17 |
| Polytronics Technology Corp. | 86 |
16 |
| Sumitomo Electric Industries, Ltd. | 15668 |
15 |
| Hitachi Energy Ltd. | 2310 |
15 |
| Rolls-Royce PLC | 3138 |
14 |
| Infineon Technologies Austria AG | 2192 |
12 |
| Yazaki Corporation | 6742 |
12 |
| Fuji Electric Co., Ltd. | 5220 |
12 |
| Sumitomo Wiring Systems, Ltd. | 10493 |
11 |
| ARC Suppression Technologies | 40 |
11 |
| Other owners | 1363 |