- 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: 1701
10-year publication summary
|
141
|
128
|
143
|
154
|
150
|
130
|
127
|
109
|
94
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24575 |
36 |
| Varian Semiconductor Equipment Associates, Inc. | 1252 |
32 |
| ABB Schweiz AG | 6609 |
31 |
| Texas Instruments Incorporated | 19403 |
30 |
| Mitsubishi Electric Corporation | 44678 |
27 |
| Eaton Intelligent Power Limited | 6291 |
25 |
| Rohm Co., Ltd. | 6281 |
23 |
| Littelfuse, Inc. | 768 |
23 |
| Hamilton Sundstrand Corporation | 4712 |
21 |
| Infineon Technologies AG | 8128 |
17 |
| Huawei Technologies Co., Ltd. | 106382 |
17 |
| Sumitomo Electric Industries, Ltd. | 14914 |
14 |
| Rolls-Royce PLC | 2976 |
14 |
| Hitachi Energy Ltd. | 2223 |
14 |
| Yazaki Corporation | 6454 |
13 |
| Polytronics Technology Corp. | 78 |
13 |
| Infineon Technologies Austria AG | 2057 |
12 |
| Fuji Electric Co., Ltd. | 4949 |
12 |
| LS ELECTRIC Co., Ltd | 602 |
12 |
| Semiconductor Components Industries, L.L.C. | 5241 |
11 |
| Other owners | 1304 |