- All sections
- H - Electricity
- H04J - Multiplex communication
- H04J 1/00 - Frequency-division multiplex systems
Patent holdings for IPC class H04J 1/00
Total number of patents in this class: 1627
10-year publication summary
|
53
|
60
|
67
|
51
|
39
|
30
|
10
|
10
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NTT DoCoMo, Inc. | 11501 |
249 |
| Sharp Kabushiki Kaisha | 18957 |
135 |
| Kyocera Corporation | 12735 |
94 |
| Panasonic Corporation | 20786 |
91 |
| Qualcomm Incorporated | 76576 |
70 |
| Samsung Electronics Co., Ltd. | 131630 |
57 |
| NEC Corporation | 32703 |
55 |
| LG Electronics Inc. | 69257 |
51 |
| Sony Corporation | 32931 |
38 |
| Fujitsu Limited | 19265 |
31 |
| Sharp Corporation | 10015 |
24 |
| Mitsubishi Electric Corporation | 43934 |
23 |
| Ericsson | 20417 |
22 |
| Huawei Technologies Co., Ltd. | 100781 |
22 |
| Sun Patent Trust | 1972 |
18 |
| Apple Inc. | 50209 |
17 |
| Cisco Technology, Inc. | 18858 |
15 |
| Electronics and Telecommunications Research Institute | 8830 |
15 |
| Nippon Telegraph and Telephone Corporation | 14195 |
15 |
| Nokia Technologies Oy | 15057 |
14 |
| Other owners | 571 |