- 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: 258
10-year publication summary
|
41
|
31
|
25
|
8
|
23
|
19
|
19
|
11
|
15
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voxer IP LLC | 76 |
15 |
| Hyundai Motor Company | 22200 |
11 |
| Microsoft Technology Licensing, LLC | 53854 |
9 |
| AT&T Intellectual Property I, L.P. | 9563 |
8 |
| Ricoh Company, Ltd. | 13292 |
8 |
| Global Tel*Link Corporation | 428 |
8 |
| salesforce.com, inc. | 5643 |
7 |
| Glide Talk Ltd. | 16 |
6 |
| Sonos, Inc. | 2641 |
5 |
| Sony Ericsson Mobile Communications AB | 1760 |
4 |
| Verizon Patent And Licensing Inc. | 7126 |
4 |
| NTT DoCoMo, Inc. | 13250 |
4 |
| ZTE Corporation | 42654 |
4 |
| Avaya Inc. | 1382 |
4 |
| AT&T Mobility II LLC | 1862 |
4 |
| 8x8, Inc. | 445 |
4 |
| Tinder LLC | 172 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 28194 |
4 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 1025 |
4 |
| Match Group Americas, LLC | 186 |
4 |
| Other owners | 137 |