- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/42 - Systems providing special services or facilities to subscribers
Patent holdings for IPC class H04M 3/42
Total number of patents in this class: 10584
10-year publication summary
|
1068
|
923
|
812
|
688
|
719
|
574
|
461
|
424
|
300
|
292
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 54366 |
311 |
| Huawei Technologies Co., Ltd. | 116134 |
270 |
| Samsung Electronics Co., Ltd. | 149362 |
219 |
| ZTE Corporation | 43102 |
211 |
| Malikie Innovations Limited | 6909 |
203 |
| AT&T Intellectual Property I, L.P. | 9686 |
194 |
| Cisco Technology, Inc. | 22104 |
158 |
| Google LLC | 43177 |
156 |
| RingCentral, Inc. | 778 |
148 |
| T-Mobile USA, Inc. | 4247 |
146 |
| Verizon Patent And Licensing Inc. | 7375 |
145 |
| International Business Machines Corporation | 61759 |
133 |
| Apple Inc. | 56547 |
130 |
| NEC Corporation | 36308 |
124 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 1046 |
123 |
| First Orion Corp. | 177 |
122 |
| Qualcomm Incorporated | 87874 |
116 |
| Avaya Inc. | 1364 |
113 |
| United Services Automobile Association (USAA) | 3100 |
105 |
| Arlington Technologies, LLC | 621 |
103 |
| Other owners | 7354 |