- 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: 10872
10-year publication summary
|
1079
|
929
|
821
|
700
|
737
|
583
|
468
|
416
|
293
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 106498 |
325 |
| Microsoft Technology Licensing, LLC | 52891 |
318 |
| Samsung Electronics Co., Ltd. | 138518 |
219 |
| ZTE Corporation | 41038 |
215 |
| Malikie Innovations Limited | 7386 |
213 |
| AT&T Intellectual Property I, L.P. | 9330 |
199 |
| Cisco Technology, Inc. | 19312 |
173 |
| Google LLC | 40754 |
162 |
| RingCentral, Inc. | 734 |
149 |
| Verizon Patent And Licensing Inc. | 6937 |
144 |
| T-Mobile USA, Inc. | 3880 |
138 |
| International Business Machines Corporation | 60075 |
137 |
| Apple Inc. | 52607 |
127 |
| NEC Corporation | 34337 |
127 |
| Qualcomm Incorporated | 81413 |
123 |
| Avaya Inc. | 1451 |
116 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 838 |
113 |
| First Orion Corp. | 157 |
108 |
| Arlington Technologies, LLC | 636 |
105 |
| West Technology Group, LLC | 414 |
104 |
| Other owners | 7557 |