- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuitsresonators
- H03H 7/09 - Filters comprising mutual inductance
Patent holdings for IPC class H03H 7/09
Total number of patents in this class: 722
10-year publication summary
|
60
|
60
|
61
|
53
|
50
|
49
|
45
|
43
|
20
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25758 |
259 |
| Mitsubishi Electric Corporation | 48048 |
41 |
| Qorvo US, Inc. | 2401 |
40 |
| TDK Corporation | 6876 |
27 |
| Qualcomm Incorporated | 92416 |
26 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
18 |
| Sumitomo Electric Industries, Ltd. | 16355 |
12 |
| Sumitomo Wiring Systems, Ltd. | 11029 |
11 |
| AutoNetworks Technologies, Ltd. | 7130 |
11 |
| Ericsson | 22785 |
7 |
| Apple Inc. | 58885 |
6 |
| Elmec Corporation | 15 |
6 |
| Quantalrf AG | 28 |
6 |
| Intel Corporation | 47122 |
5 |
| Infineon Technologies AG | 8402 |
5 |
| BAE Systems Controls Inc. | 228 |
5 |
| Skyworks Solutions, Inc. | 3953 |
5 |
| Kabushiki Kaisha Toyota Jidoshokki | 1812 |
5 |
| Hitachi Astemo, Ltd. | 6407 |
5 |
| Siemens AG | 24020 |
4 |
| Other owners | 218 |