- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuitsresonators
- H03H 21/00 - Adaptive networks
Patent holdings for IPC class H03H 21/00
Total number of patents in this class: 336
10-year publication summary
|
31
|
38
|
29
|
35
|
30
|
28
|
14
|
13
|
15
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 35062 |
19 |
| Dolby Laboratories Licensing Corporation | 4091 |
12 |
| Huawei Technologies Co., Ltd. | 109418 |
9 |
| Medtronic, Inc. | 9786 |
7 |
| Asahi Kasei Microdevices Corporation | 518 |
6 |
| Gcoa Co., Ltd. | 27 |
6 |
| Apple Inc. | 53995 |
5 |
| Bose Corporation | 2952 |
5 |
| Avago Technologies International Sales Pte. Limited | 8884 |
5 |
| Intel Corporation | 46613 |
4 |
| Amazon Technologies, Inc. | 26290 |
4 |
| University of Florida Research Foundation, Inc. | 3959 |
4 |
| Nokia Technologies Oy | 17279 |
4 |
| Avatekh, Inc. | 16 |
4 |
| Wilus Institute of Standards and Technology Inc. | 728 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 27661 |
4 |
| Nokia Corporation | 5909 |
3 |
| Ericsson | 21405 |
3 |
| Robert Bosch GmbH | 42222 |
3 |
| Cisco Technology, Inc. | 19546 |
3 |
| Other owners | 222 |