- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/53 - Centralised arrangements for recording incoming messages
Patent holdings for IPC class H04M 3/53
Total number of patents in this class: 263
10-year publication summary
|
42
|
42
|
31
|
25
|
10
|
24
|
19
|
18
|
11
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voxer IP LLC | 75 |
15 |
| Hyundai Motor Company | 19021 |
11 |
| Microsoft Technology Licensing, LLC | 51439 |
10 |
| AT&T Intellectual Property I, L.P. | 9886 |
9 |
| Global Tel*Link Corporation | 431 |
8 |
| Ricoh Company, Ltd. | 13266 |
7 |
| salesforce.com, inc. | 5003 |
6 |
| Glide Talk Ltd. | 16 |
6 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
5 |
| Sony Ericsson Mobile Communications AB | 2014 |
4 |
| Huawei Technologies Co., Ltd. | 100781 |
4 |
| NTT DoCoMo, Inc. | 11501 |
4 |
| Avaya Inc. | 1529 |
4 |
| AT&T Mobility II LLC | 1982 |
4 |
| Genesys Telecommunications Laboratories, Inc. | 749 |
4 |
| META Platforms, Inc. | 7514 |
4 |
| Qualcomm Incorporated | 76576 |
3 |
| International Business Machines Corporation | 60644 |
3 |
| Nokia Corporation | 6965 |
3 |
| Cisco Technology, Inc. | 18858 |
3 |
| Other owners | 146 |