- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 25/49 - Transmitting circuits; Receiving circuits using three or more amplitude levels
Patent holdings for IPC class H04L 25/49
Total number of patents in this class: 2266
10-year publication summary
|
246
|
238
|
191
|
171
|
227
|
150
|
142
|
120
|
109
|
30
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 76576 |
123 |
| Huawei Technologies Co., Ltd. | 100781 |
91 |
| Kandou Labs, S.A. | 312 |
84 |
| Samsung Electronics Co., Ltd. | 131630 |
65 |
| Texas Instruments Incorporated | 19376 |
55 |
| Intel Corporation | 45621 |
54 |
| Micron Technology, Inc. | 24960 |
46 |
| Avago Technologies International Sales Pte. Limited | 9260 |
41 |
| Sony Corporation | 32931 |
36 |
| Rambus Inc. | 2314 |
35 |
| Ericsson | 20417 |
34 |
| Infineon Technologies AG | 8189 |
32 |
| ZTE Corporation | 39218 |
32 |
| Marvell Asia PTE, Ltd. | 6841 |
26 |
| Apple Inc. | 50209 |
25 |
| LG Electronics Inc. | 69257 |
24 |
| Cavium International | 5549 |
24 |
| Fujitsu Limited | 19265 |
23 |
| International Business Machines Corporation | 60644 |
22 |
| NEC Corporation | 32703 |
20 |
| Other owners | 1374 |