- 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: 3506
10-year publication summary
|
416
|
402
|
384
|
313
|
301
|
210
|
176
|
139
|
119
|
68
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 8x8, Inc. | 445 |
150 |
| Microsoft Technology Licensing, LLC | 53854 |
93 |
| Twilio, Inc. | 591 |
86 |
| AT&T Intellectual Property I, L.P. | 9563 |
77 |
| Verizon Patent And Licensing Inc. | 7126 |
72 |
| Huawei Technologies Co., Ltd. | 113491 |
67 |
| RingCentral, Inc. | 767 |
66 |
| Cisco Technology, Inc. | 21965 |
61 |
| T-Mobile USA, Inc. | 4157 |
61 |
| Ericsson | 21856 |
51 |
| Level 3 Communications, LLC | 1268 |
51 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 1025 |
46 |
| Tango Networks, Inc. | 138 |
44 |
| CenturyLink Intellectual Property LLC | 1243 |
42 |
| Metaswitch Networks Ltd | 235 |
41 |
| Samsung Electronics Co., Ltd. | 147334 |
39 |
| International Business Machines Corporation | 61402 |
34 |
| Telefonaktiebolaget LM Ericsson (publ) | 28194 |
34 |
| Avaya Inc. | 1382 |
33 |
| Vonage Business Inc. | 172 |
32 |
| Other owners | 2326 |