- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 27/28 - Systems using multi-frequency codes with simultaneous transmission of different frequencies each representing one code element
Patent holdings for IPC class H04L 27/28
Total number of patents in this class: 1254
10-year publication summary
|
50
|
48
|
36
|
39
|
25
|
24
|
27
|
13
|
7
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 151485 |
100 |
| Qualcomm Incorporated | 88827 |
87 |
| LG Electronics Inc. | 74388 |
64 |
| Huawei Technologies Co., Ltd. | 118145 |
56 |
| Ericsson | 22156 |
45 |
| Marvell Asia PTE, Ltd. | 6392 |
40 |
| Cavium International | 4835 |
39 |
| Apple Inc. | 57166 |
33 |
| Intel Corporation | 46569 |
23 |
| Texas Instruments Incorporated | 19542 |
23 |
| Electronics and Telecommunications Research Institute | 9435 |
23 |
| Sun Patent Trust | 2005 |
20 |
| Marvell International Ltd. | 1138 |
18 |
| Avago Technologies International Sales Pte. Limited | 8631 |
18 |
| Google Technology Holdings LLC | 2168 |
16 |
| Sharp Corporation | 10368 |
13 |
| NEC Corporation | 36448 |
12 |
| ZTE Corporation | 43386 |
12 |
| Nokia Technologies Oy | 19787 |
12 |
| Comcast Cable Communications, LLC | 4972 |
12 |
| Other owners | 588 |