- 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: 2294
10-year publication summary
|
238
|
191
|
171
|
227
|
151
|
143
|
121
|
114
|
88
|
29
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 83345 |
126 |
| Huawei Technologies Co., Ltd. | 108912 |
91 |
| Kandou Labs, S.A. | 322 |
86 |
| Samsung Electronics Co., Ltd. | 141620 |
71 |
| Texas Instruments Incorporated | 19478 |
55 |
| Intel Corporation | 46550 |
54 |
| Micron Technology, Inc. | 26070 |
48 |
| Avago Technologies International Sales Pte. Limited | 8877 |
41 |
| Sony Corporation | 31284 |
36 |
| Ericsson | 21309 |
35 |
| ZTE Corporation | 41605 |
34 |
| Infineon Technologies AG | 8173 |
32 |
| Rambus Inc. | 2346 |
31 |
| Marvell Asia PTE, Ltd. | 6565 |
26 |
| Apple Inc. | 53901 |
25 |
| LG Electronics Inc. | 71809 |
24 |
| Cavium International | 5123 |
23 |
| Fujitsu Limited | 18297 |
22 |
| NEC Corporation | 34921 |
21 |
| Microchip Technology Incorporated | 2774 |
20 |
| Other owners | 1393 |