- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/487 - Arrangements for providing information services, e.g. recorded voice services or time announcements
Patent holdings for IPC class H04M 3/487
Total number of patents in this class: 498
10-year publication summary
|
62
|
44
|
36
|
29
|
38
|
31
|
13
|
14
|
16
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36003 |
16 |
| Seven Networks, LLC | 126 |
15 |
| Huawei Technologies Co., Ltd. | 113853 |
11 |
| Thryv, Inc. | 300 |
11 |
| Vusura Technology LLC | 23 |
11 |
| AT&T Intellectual Property I, L.P. | 9588 |
10 |
| Tiktok Pte. Ltd. | 11 |
10 |
| Samsung Electronics Co., Ltd. | 147622 |
9 |
| ZTE Corporation | 42721 |
9 |
| Qualcomm Incorporated | 86553 |
8 |
| Yamaha Corporation | 4082 |
8 |
| Microsoft Technology Licensing, LLC | 53910 |
8 |
| Google LLC | 42564 |
8 |
| Invoca, Inc. | 73 |
8 |
| Zoom Video Communications, Inc. | 572 |
8 |
| Sony Corporation | 30929 |
7 |
| Nokia Corporation | 5549 |
7 |
| NTT DoCoMo, Inc. | 13287 |
6 |
| III Holdings 1, LLC | 182 |
6 |
| Nokia Technologies Oy | 18266 |
6 |
| Other owners | 316 |