- All sections
- H - Electricity
- H04J - Multiplex communication
- H04J 4/00 - Combined time-division and frequency-division multiplex systems
Patent holdings for IPC class H04J 4/00
Total number of patents in this class: 366
10-year publication summary
|
42
|
27
|
19
|
16
|
16
|
12
|
6
|
4
|
5
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
28 |
| Qualcomm Incorporated | 76576 |
22 |
| Samsung Electronics Co., Ltd. | 131630 |
19 |
| Ericsson | 20417 |
16 |
| Huawei Technologies Co., Ltd. | 100781 |
11 |
| Electronics and Telecommunications Research Institute | 8830 |
10 |
| Sun Patent Trust | 1972 |
10 |
| Fujitsu Limited | 19265 |
8 |
| Texas Instruments Incorporated | 19376 |
8 |
| ZTE Corporation | 39218 |
8 |
| NTT DoCoMo, Inc. | 11501 |
7 |
| Cisco Technology, Inc. | 18858 |
6 |
| Apple Inc. | 50209 |
4 |
| NEC Corporation | 32703 |
4 |
| Microsoft Technology Licensing, LLC | 51439 |
4 |
| Futurewei Technologies, Inc. | 3708 |
4 |
| Nokia Technologies Oy | 15057 |
4 |
| Aviat U.S., Inc. | 219 |
4 |
| Cohere Technologies, Inc. | 193 |
4 |
| Infinera Corporation | 620 |
4 |
| Other owners | 181 |