- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 25/49 - Transmitting circuitsReceiving circuits using code conversion at the transmitterTransmitting circuitsReceiving circuits using predistortionTransmitting circuitsReceiving circuits using insertion of idle bits for obtaining a desired frequency spectrumTransmitting circuitsReceiving circuits using three or more amplitude levels
Patent holdings for IPC class H04L 25/49
Total number of patents in this class: 2358
10-year publication summary
|
237
|
187
|
170
|
225
|
151
|
142
|
124
|
117
|
94
|
108
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 87585 |
135 |
| Huawei Technologies Co., Ltd. | 115827 |
94 |
| Kandou Labs, S.A. | 331 |
86 |
| Samsung Electronics Co., Ltd. | 149087 |
81 |
| Texas Instruments Incorporated | 19495 |
54 |
| Intel Corporation | 46460 |
49 |
| Micron Technology, Inc. | 26558 |
49 |
| Avago Technologies International Sales Pte. Limited | 8663 |
41 |
| ZTE Corporation | 43054 |
36 |
| Ericsson | 21998 |
35 |
| Sony Corporation | 30787 |
34 |
| Infineon Technologies AG | 8287 |
32 |
| Rambus Inc. | 2359 |
29 |
| LG Electronics Inc. | 73772 |
28 |
| Apple Inc. | 56283 |
26 |
| Marvell Asia PTE, Ltd. | 6427 |
25 |
| Microchip Technology Incorporated | 2997 |
24 |
| Cavium International | 4918 |
23 |
| NEC Corporation | 36257 |
21 |
| Fujitsu Limited | 17652 |
20 |
| Other owners | 1436 |