- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/00 - Automatic or semi-automatic exchanges
Patent holdings for IPC class H04M 3/00
Total number of patents in this class: 5111
10-year publication summary
|
494
|
458
|
401
|
317
|
214
|
213
|
164
|
126
|
90
|
17
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Avaya Inc. | 1529 |
209 |
| NEC Corporation | 32703 |
185 |
| Genesys Telecommunications Laboratories, Inc. | 749 |
170 |
| Alvaria Cayman (cx) | 322 |
149 |
| Samsung Electronics Co., Ltd. | 131630 |
112 |
| Microsoft Technology Licensing, LLC | 51439 |
112 |
| Malikie Innovations Limited | 7703 |
112 |
| AT&T Intellectual Property I, L.P. | 9886 |
89 |
| NTT DoCoMo, Inc. | 11501 |
84 |
| Cisco Technology, Inc. | 18858 |
83 |
| T-Mobile Innovations LLC | 3213 |
81 |
| Apple Inc. | 50209 |
80 |
| Qualcomm Incorporated | 76576 |
75 |
| Afiniti, Ltd. | 299 |
73 |
| United Services Automobile Association (USAA) | 2514 |
71 |
| Huawei Technologies Co., Ltd. | 100781 |
66 |
| Verizon Patent And Licensing Inc. | 6900 |
61 |
| Amazon Technologies, Inc. | 24422 |
55 |
| International Business Machines Corporation | 60644 |
51 |
| AT&T Mobility II LLC | 1982 |
50 |
| Other owners | 3143 |