- 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: 357
10-year publication summary
|
27
|
19
|
16
|
16
|
12
|
6
|
6
|
5
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 71185 |
28 |
| Qualcomm Incorporated | 82165 |
21 |
| Samsung Electronics Co., Ltd. | 139551 |
19 |
| Ericsson | 21203 |
16 |
| Huawei Technologies Co., Ltd. | 107154 |
11 |
| Sun Patent Trust | 2047 |
11 |
| Electronics and Telecommunications Research Institute | 9039 |
10 |
| ZTE Corporation | 41154 |
9 |
| Fujitsu Limited | 18417 |
8 |
| NTT DoCoMo, Inc. | 12334 |
7 |
| Texas Instruments Incorporated | 19443 |
6 |
| Cisco Technology, Inc. | 19411 |
6 |
| Cable Television Laboratories, Inc. | 944 |
5 |
| Apple Inc. | 52932 |
4 |
| NEC Corporation | 34540 |
4 |
| Microsoft Technology Licensing, LLC | 52933 |
4 |
| Futurewei Technologies, Inc. | 3728 |
4 |
| Nokia Technologies Oy | 16656 |
4 |
| Aviat U.S., Inc. | 218 |
4 |
| Cohere Technologies, Inc. | 210 |
4 |
| Other owners | 172 |