- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 7/00 - Arrangements for interconnection between switching centres
Patent holdings for IPC class H04M 7/00
Total number of patents in this class: 3526
10-year publication summary
|
421
|
404
|
386
|
313
|
306
|
211
|
177
|
139
|
116
|
47
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 8x8, Inc. | 438 |
146 |
| Microsoft Technology Licensing, LLC | 53545 |
95 |
| Twilio, Inc. | 573 |
85 |
| AT&T Intellectual Property I, L.P. | 9481 |
79 |
| Verizon Patent And Licensing Inc. | 7070 |
72 |
| Huawei Technologies Co., Ltd. | 111237 |
68 |
| RingCentral, Inc. | 754 |
67 |
| Cisco Technology, Inc. | 19655 |
65 |
| T-Mobile USA, Inc. | 4050 |
61 |
| Level 3 Communications, LLC | 1258 |
51 |
| Ericsson | 21622 |
50 |
| Tango Networks, Inc. | 137 |
44 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 960 |
44 |
| CenturyLink Intellectual Property LLC | 1232 |
42 |
| Metaswitch Networks Ltd | 236 |
41 |
| Samsung Electronics Co., Ltd. | 144426 |
40 |
| International Business Machines Corporation | 61123 |
34 |
| Telefonaktiebolaget LM Ericsson (publ) | 27825 |
34 |
| Avaya Inc. | 1401 |
33 |
| Vonage Business Inc. | 171 |
32 |
| Other owners | 2343 |