- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 1/30 - Combinations of transducers with horns, e.g. with mechanical matching means
Patent holdings for IPC class H04R 1/30
Total number of patents in this class: 336
10-year publication summary
|
28
|
49
|
34
|
28
|
26
|
34
|
23
|
27
|
14
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Harman International Industries, Incorporated | 2884 |
33 |
| Bose Corporation | 3093 |
29 |
| Apple Inc. | 59027 |
19 |
| Samsung Electronics Co., Ltd. | 158442 |
13 |
| Dolby Laboratories Licensing Corporation | 4351 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
9 |
| Robert Bosch GmbH | 44254 |
5 |
| Yamaha Corporation | 4083 |
5 |
| Pioneer Corporation | 3769 |
4 |
| Tohoku Pioneer Corporation | 462 |
4 |
| JVC Kenwood Corporation | 3137 |
4 |
| PSS Belgium N.V. | 135 |
4 |
| Qsc, LLC | 210 |
4 |
| AAC Technologies Pte. Ltd. | 1505 |
4 |
| Eaw North America, Inc | 25 |
4 |
| Audarium LLC | 20 |
4 |
| Alcons Audio B.V. | 14 |
3 |
| Cerberus Black Ltd | 6 |
3 |
| GP Acoustics (UK) Limited | 27 |
3 |
| JMJ Holdings, LLC | 21 |
3 |
| Other owners | 169 |