- 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: 510
10-year publication summary
|
71
|
64
|
44
|
37
|
29
|
39
|
31
|
14
|
13
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 32703 |
16 |
| Seven Networks, LLC | 155 |
15 |
| Huawei Technologies Co., Ltd. | 100781 |
12 |
| Thryv, Inc. | 326 |
11 |
| AT&T Intellectual Property I, L.P. | 9886 |
10 |
| Qualcomm Incorporated | 76576 |
9 |
| ZTE Corporation | 39218 |
9 |
| Microsoft Technology Licensing, LLC | 51439 |
9 |
| Tiktok Pte. Ltd. | 10 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Yamaha Corporation | 4054 |
8 |
| Zoom Video Communications, Inc. | 819 |
8 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
8 |
| Sony Corporation | 32931 |
7 |
| Nokia Corporation | 6965 |
7 |
| Google LLC | 38759 |
7 |
| Vusura Technology LLC | 18 |
7 |
| NTT DoCoMo, Inc. | 11501 |
6 |
| III Holdings 1, LLC | 212 |
6 |
| Invoca, Inc. | 47 |
6 |
| Other owners | 332 |