- 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: 3327
10-year publication summary
|
404
|
386
|
313
|
307
|
211
|
178
|
141
|
121
|
95
|
54
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 8x8, Inc. | 466 |
147 |
| Twilio, Inc. | 668 |
89 |
| Microsoft Technology Licensing, LLC | 54706 |
82 |
| AT&T Intellectual Property I, L.P. | 10062 |
78 |
| Verizon Patent And Licensing Inc. | 7700 |
70 |
| Huawei Technologies Co., Ltd. | 125590 |
69 |
| RingCentral, Inc. | 799 |
63 |
| T-Mobile USA, Inc. | 4563 |
62 |
| Cisco Technology, Inc. | 22668 |
56 |
| Level 3 Communications, LLC | 1242 |
51 |
| Ericsson | 23125 |
48 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 1119 |
45 |
| CenturyLink Intellectual Property LLC | 1288 |
36 |
| Samsung Electronics Co., Ltd. | 159755 |
35 |
| International Business Machines Corporation | 62871 |
32 |
| Google LLC | 44941 |
32 |
| Vonage Business Inc. | 178 |
32 |
| Alianza, LLC | 200 |
31 |
| ZTE Corporation | 44368 |
29 |
| Comcast Cable Communications, LLC | 5273 |
29 |
| Other owners | 2211 |