- All sections
- H - Electricity
- H04J - Multiplex communication
- H04J 14/04 - Mode multiplex systems
Patent holdings for IPC class H04J 14/04
Total number of patents in this class: 472
10-year publication summary
|
39
|
48
|
44
|
45
|
43
|
27
|
32
|
29
|
15
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36267 |
64 |
| Nippon Telegraph and Telephone Corporation | 16683 |
40 |
| Cable Television Laboratories, Inc. | 1031 |
25 |
| Huawei Technologies Co., Ltd. | 115366 |
20 |
| Alcatel Lucent | 4484 |
15 |
| AT&T Intellectual Property I, L.P. | 9657 |
14 |
| Mitsubishi Electric Corporation | 46814 |
12 |
| Institut Mines-telecom | 272 |
12 |
| National Institute of Information and Communications Technology | 641 |
12 |
| Alcatel Lucent SA | 1568 |
11 |
| Sumitomo Electric Industries, Ltd. | 15732 |
8 |
| Corning Incorporated | 10382 |
7 |
| Cornell University | 3353 |
7 |
| Nxgen Partners IP, LLC | 137 |
6 |
| Futurewei Technologies, Inc. | 3764 |
5 |
| Draka Comteq, B.V. | 250 |
5 |
| University of Central Florida Research Foundation, Inc. | 1211 |
5 |
| Qualcomm Incorporated | 87362 |
4 |
| Ericsson | 21972 |
4 |
| Hitachi, Ltd. | 15655 |
4 |
| Other owners | 192 |