- 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: 1345
10-year publication summary
|
98
|
72
|
50
|
48
|
36
|
39
|
24
|
20
|
12
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
106 |
| Qualcomm Incorporated | 76576 |
95 |
| LG Electronics Inc. | 69257 |
65 |
| Huawei Technologies Co., Ltd. | 100781 |
56 |
| Ericsson | 20417 |
44 |
| Marvell Asia PTE, Ltd. | 6841 |
39 |
| Cavium International | 5549 |
39 |
| Apple Inc. | 50209 |
36 |
| Texas Instruments Incorporated | 19376 |
26 |
| Electronics and Telecommunications Research Institute | 8830 |
24 |
| Intel Corporation | 45621 |
23 |
| Avago Technologies International Sales Pte. Limited | 9260 |
23 |
| Google Technology Holdings LLC | 2658 |
20 |
| Sun Patent Trust | 1972 |
19 |
| Marvell International Ltd. | 1224 |
18 |
| NEC Corporation | 32703 |
15 |
| Sharp Corporation | 10015 |
14 |
| NTT DoCoMo, Inc. | 11501 |
12 |
| Comcast Cable Communications, LLC | 4075 |
12 |
| NXP USA, Inc. | 4155 |
12 |
| Other owners | 647 |