- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 27/00 - Public address systems
Patent holdings for IPC class H04R 27/00
Total number of patents in this class: 1991
10-year publication summary
|
179
|
236
|
252
|
189
|
152
|
146
|
153
|
136
|
123
|
36
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sonos, Inc. | 2803 |
702 |
| Bose Corporation | 3091 |
63 |
| Dolby Laboratories Licensing Corporation | 4277 |
57 |
| Amazon Technologies, Inc. | 27758 |
34 |
| Yamaha Corporation | 4068 |
33 |
| Harman International Industries, Incorporated | 2811 |
31 |
| Sound United, LLC | 91 |
30 |
| Google LLC | 43952 |
24 |
| Shure Acquisition Holdings, Inc. | 559 |
23 |
| Biamp Systems, LLC | 377 |
23 |
| Samsung Electronics Co., Ltd. | 154406 |
21 |
| B & W Group Ltd | 348 |
21 |
| Sony Corporation | 30368 |
19 |
| Microsoft Technology Licensing, LLC | 54243 |
18 |
| Apple Inc. | 58181 |
17 |
| Qualcomm Incorporated | 90545 |
16 |
| Hewlett-Packard Development Company, L.P. | 25337 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 33634 |
15 |
| Robert Bosch GmbH | 43646 |
13 |
| Honeywell International Inc. | 12788 |
12 |
| Other owners | 804 |