- 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: 1241
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. | 154406 |
99 |
| Qualcomm Incorporated | 90545 |
87 |
| LG Electronics Inc. | 75112 |
63 |
| Huawei Technologies Co., Ltd. | 120661 |
55 |
| Ericsson | 22319 |
45 |
| Marvell Asia PTE, Ltd. | 6342 |
40 |
| Cavium International | 4753 |
39 |
| Apple Inc. | 58181 |
31 |
| Intel Corporation | 46700 |
23 |
| Electronics and Telecommunications Research Institute | 9534 |
23 |
| Texas Instruments Incorporated | 19635 |
22 |
| Sun Patent Trust | 2003 |
20 |
| Marvell International Ltd. | 1125 |
18 |
| Avago Technologies International Sales Pte. Limited | 8602 |
18 |
| Google Technology Holdings LLC | 2129 |
16 |
| NEC Corporation | 36702 |
12 |
| Sharp Corporation | 10471 |
12 |
| ZTE Corporation | 43659 |
12 |
| Comcast Cable Communications, LLC | 5044 |
12 |
| NXP USA, Inc. | 4440 |
12 |
| Other owners | 582 |