- 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: 2328
10-year publication summary
|
237
|
187
|
170
|
225
|
151
|
142
|
123
|
116
|
92
|
69
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 85914 |
132 |
| Huawei Technologies Co., Ltd. | 113191 |
92 |
| Kandou Labs, S.A. | 328 |
86 |
| Samsung Electronics Co., Ltd. | 147003 |
78 |
| Texas Instruments Incorporated | 19456 |
55 |
| Intel Corporation | 47051 |
52 |
| Micron Technology, Inc. | 26251 |
49 |
| Avago Technologies International Sales Pte. Limited | 8739 |
41 |
| ZTE Corporation | 42606 |
36 |
| Sony Corporation | 31004 |
35 |
| Ericsson | 21821 |
35 |
| Infineon Technologies AG | 8235 |
32 |
| Rambus Inc. | 2372 |
30 |
| Marvell Asia PTE, Ltd. | 6532 |
26 |
| Apple Inc. | 55229 |
24 |
| LG Electronics Inc. | 73383 |
24 |
| Cavium International | 5005 |
23 |
| Fujitsu Limited | 18404 |
22 |
| NEC Corporation | 35793 |
21 |
| Microchip Technology Incorporated | 2881 |
20 |
| Other owners | 1415 |