- 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: 2280
10-year publication summary
|
238
|
191
|
171
|
227
|
151
|
143
|
121
|
112
|
87
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 81413 |
123 |
| Huawei Technologies Co., Ltd. | 106498 |
90 |
| Kandou Labs, S.A. | 322 |
86 |
| Samsung Electronics Co., Ltd. | 138518 |
70 |
| Texas Instruments Incorporated | 19405 |
55 |
| Intel Corporation | 46097 |
54 |
| Micron Technology, Inc. | 25756 |
48 |
| Avago Technologies International Sales Pte. Limited | 8950 |
41 |
| Sony Corporation | 31565 |
36 |
| Ericsson | 21094 |
35 |
| ZTE Corporation | 41038 |
33 |
| Infineon Technologies AG | 8134 |
32 |
| Rambus Inc. | 2326 |
31 |
| Marvell Asia PTE, Ltd. | 6565 |
26 |
| Apple Inc. | 52607 |
25 |
| LG Electronics Inc. | 70898 |
24 |
| Fujitsu Limited | 18419 |
23 |
| Cavium International | 5183 |
23 |
| NEC Corporation | 34337 |
21 |
| Telefonaktiebolaget LM Ericsson (publ) | 27378 |
20 |
| Other owners | 1384 |