- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public 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: 301
10-year publication summary
|
24
|
23
|
28
|
49
|
34
|
28
|
26
|
34
|
21
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bose Corporation | 2880 |
29 |
| Harman International Industries, Incorporated | 2443 |
25 |
| Apple Inc. | 50209 |
18 |
| Samsung Electronics Co., Ltd. | 131630 |
10 |
| Dolby Laboratories Licensing Corporation | 3883 |
10 |
| Robert Bosch GmbH | 40953 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
5 |
| Yamaha Corporation | 4054 |
5 |
| Alcons Audio B.V. | 16 |
5 |
| GP Acoustics (UK) Limited | 30 |
5 |
| JVC Kenwood Corporation | 2774 |
4 |
| Klipsch Group, Inc. | 106 |
4 |
| Martin Audio Limited | 57 |
4 |
| TOA Corporation | 130 |
4 |
| Eaw North America, Inc | 24 |
4 |
| Panasonic Corporation | 20786 |
3 |
| Pioneer Corporation | 4843 |
3 |
| Tohoku Pioneer Corporation | 477 |
3 |
| Cerberus Black Ltd | 8 |
3 |
| Meyer Sound Laboratories, Incorporated | 117 |
3 |
| Other owners | 149 |