- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 27/00 - Public address systems
Patent holdings for IPC class H04R 27/00
Total number of patents in this class: 1798
10-year publication summary
|
148
|
247
|
179
|
236
|
252
|
188
|
152
|
140
|
140
|
44
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sonos, Inc. | 2274 |
609 |
| Bose Corporation | 2880 |
55 |
| Dolby Laboratories Licensing Corporation | 3883 |
53 |
| Yamaha Corporation | 4054 |
32 |
| Amazon Technologies, Inc. | 24422 |
29 |
| Harman International Industries, Incorporated | 2443 |
24 |
| Sound United, LLC | 46 |
24 |
| Samsung Electronics Co., Ltd. | 131630 |
22 |
| Apple Inc. | 50209 |
20 |
| Sony Corporation | 32931 |
20 |
| B & W Group Ltd | 344 |
20 |
| Shure Acquisition Holdings, Inc. | 449 |
20 |
| Google LLC | 38759 |
19 |
| Microsoft Technology Licensing, LLC | 51439 |
18 |
| Qualcomm Incorporated | 76576 |
16 |
| Hewlett-Packard Development Company, L.P. | 28538 |
16 |
| Biamp Systems, LLC | 213 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
15 |
| Honeywell International Inc. | 13799 |
13 |
| Robert Bosch GmbH | 40953 |
13 |
| Other owners | 744 |