- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
Patent holdings for IPC class H04R 1/34
Total number of patents in this class: 1173
10-year publication summary
|
65
|
83
|
144
|
106
|
160
|
133
|
157
|
126
|
128
|
28
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bose Corporation | 2880 |
85 |
| Samsung Electronics Co., Ltd. | 131630 |
65 |
| Shenzhen Shokz Co., Ltd. | 629 |
64 |
| Harman International Industries, Incorporated | 2443 |
50 |
| Apple Inc. | 50209 |
43 |
| Sony Corporation | 32931 |
35 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
23 |
| Yamaha Corporation | 4054 |
22 |
| Google LLC | 38759 |
22 |
| Sony Group Corporation | 10730 |
17 |
| Amazon Technologies, Inc. | 24422 |
16 |
| Dolby Laboratories Licensing Corporation | 3883 |
16 |
| META Platforms Technologies, LLC | 4806 |
14 |
| Sonos, Inc. | 2274 |
13 |
| LG Electronics Inc. | 69257 |
11 |
| Pioneer Corporation | 4843 |
11 |
| Goertek Inc. | 2477 |
11 |
| Qsc, LLC | 182 |
10 |
| Robert Bosch GmbH | 40953 |
9 |
| Tohoku Pioneer Corporation | 477 |
9 |
| Other owners | 627 |