- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuits; resonators
- H03H 21/00 - Adaptive networks
Patent holdings for IPC class H03H 21/00
Total number of patents in this class: 334
10-year publication summary
|
18
|
31
|
38
|
29
|
35
|
30
|
28
|
13
|
12
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 32703 |
19 |
| Dolby Laboratories Licensing Corporation | 3883 |
12 |
| Huawei Technologies Co., Ltd. | 100781 |
9 |
| Gcoa Co., Ltd. | 27 |
6 |
| Apple Inc. | 50209 |
5 |
| Intel Corporation | 45621 |
5 |
| Medtronic, Inc. | 9964 |
5 |
| Bose Corporation | 2880 |
5 |
| University of Florida Research Foundation, Inc. | 3883 |
4 |
| Nokia Technologies Oy | 15057 |
4 |
| Asahi Kasei Microdevices Corporation | 461 |
4 |
| Avatekh, Inc. | 16 |
4 |
| Wilus Institute of Standards and Technology Inc. | 602 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
4 |
| Nokia Corporation | 6965 |
3 |
| Ericsson | 20417 |
3 |
| Robert Bosch GmbH | 40953 |
3 |
| Cisco Technology, Inc. | 18858 |
3 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| Mediatek Inc. | 4584 |
3 |
| Other owners | 226 |