- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/22 - Arrangements for supervision, monitoring or testing
Patent holdings for IPC class H04M 3/22
Total number of patents in this class: 2208
10-year publication summary
|
236
|
246
|
215
|
196
|
207
|
190
|
188
|
154
|
124
|
37
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Global Tel*Link Corporation | 431 |
97 |
| Huawei Technologies Co., Ltd. | 100781 |
57 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
57 |
| Securus Technologies, LLC | 292 |
52 |
| AT&T Intellectual Property I, L.P. | 9886 |
51 |
| Ericsson | 20417 |
48 |
| International Business Machines Corporation | 60644 |
41 |
| British Telecommunications Public Limited Company | 2575 |
41 |
| ZTE Corporation | 39218 |
35 |
| Pindrop Security, Inc. | 209 |
33 |
| Somos, Inc. | 101 |
33 |
| Verizon Patent And Licensing Inc. | 6900 |
32 |
| Microsoft Technology Licensing, LLC | 51439 |
32 |
| Genesys Telecommunications Laboratories, Inc. | 749 |
32 |
| First Orion Corp. | 140 |
30 |
| People.ai, Inc. | 125 |
30 |
| Capital One Services, LLC. | 7551 |
27 |
| T-Mobile USA, Inc. | 3668 |
26 |
| Verint Americas Inc. | 540 |
25 |
| Callyo 2009 Corp. | 43 |
24 |
| Other owners | 1405 |