- 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: 1835
10-year publication summary
|
125
|
140
|
148
|
149
|
128
|
126
|
112
|
106
|
101
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24236 |
39 |
| ABB Schweiz AG | 7429 |
37 |
| Texas Instruments Incorporated | 19615 |
35 |
| Varian Semiconductor Equipment Associates, Inc. | 1198 |
32 |
| Mitsubishi Electric Corporation | 47556 |
29 |
| Rohm Co., Ltd. | 6740 |
25 |
| Eaton Intelligent Power Limited | 6154 |
25 |
| Littelfuse, Inc. | 789 |
24 |
| Hamilton Sundstrand Corporation | 5014 |
21 |
| Huawei Technologies Co., Ltd. | 119891 |
19 |
| Infineon Technologies AG | 8383 |
17 |
| Rolls-Royce PLC | 3180 |
17 |
| Hitachi Energy Ltd. | 2461 |
17 |
| Sumitomo Electric Industries, Ltd. | 16071 |
16 |
| Polytronics Technology Corp. | 86 |
16 |
| Fuji Electric Co., Ltd. | 5383 |
13 |
| Yazaki Corporation | 6952 |
12 |
| Sumitomo Wiring Systems, Ltd. | 10767 |
12 |
| AutoNetworks Technologies, Ltd. | 6922 |
12 |
| Phoenix Contact GmbH & Co. KG | 2283 |
12 |
| Other owners | 1405 |