- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuits; resonators
- H03H 17/02 - Frequency-selective networks
Patent holdings for IPC class H03H 17/02
Total number of patents in this class: 925
10-year publication summary
|
56
|
75
|
87
|
84
|
104
|
64
|
85
|
73
|
47
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 32703 |
35 |
| Dolby International AB | 1076 |
26 |
| Mitsubishi Electric Corporation | 43934 |
22 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
13 |
| Intel Corporation | 45621 |
12 |
| Texas Instruments Incorporated | 19376 |
12 |
| Huawei Technologies Co., Ltd. | 100781 |
12 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
12 |
| Qualcomm Incorporated | 76576 |
11 |
| Dolby International AB | 422 |
11 |
| Robert Bosch GmbH | 40953 |
10 |
| Dolby Laboratories Licensing Corporation | 3883 |
10 |
| Samsung Electronics Co., Ltd. | 131630 |
9 |
| Raytheon Company | 8535 |
9 |
| ROHDE & Schwarz GmbH & Co. KG | 1831 |
9 |
| Immersion Networks, Inc. | 30 |
9 |
| ZTE Corporation | 39218 |
8 |
| Nippon Telegraph and Telephone Corporation | 14195 |
8 |
| The Boeing Company | 19843 |
7 |
| Ericsson | 20417 |
7 |
| Other owners | 673 |