- 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: 1280
10-year publication summary
|
72
|
50
|
48
|
36
|
39
|
25
|
24
|
25
|
11
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 146811 |
100 |
| Qualcomm Incorporated | 85833 |
90 |
| LG Electronics Inc. | 73344 |
64 |
| Huawei Technologies Co., Ltd. | 113064 |
58 |
| Ericsson | 21804 |
45 |
| Marvell Asia PTE, Ltd. | 6530 |
40 |
| Cavium International | 5007 |
39 |
| Apple Inc. | 55174 |
35 |
| Texas Instruments Incorporated | 19443 |
24 |
| Intel Corporation | 47033 |
23 |
| Electronics and Telecommunications Research Institute | 9416 |
23 |
| Sun Patent Trust | 2000 |
20 |
| Marvell International Ltd. | 1178 |
18 |
| Avago Technologies International Sales Pte. Limited | 8748 |
18 |
| Google Technology Holdings LLC | 2315 |
17 |
| NEC Corporation | 35778 |
13 |
| Sharp Corporation | 10265 |
13 |
| ZTE Corporation | 42569 |
12 |
| Comcast Cable Communications, LLC | 4713 |
12 |
| NXP USA, Inc. | 4304 |
12 |
| Other owners | 604 |