- 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: 2415
10-year publication summary
|
191
|
171
|
227
|
151
|
143
|
125
|
119
|
96
|
121
|
81
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 93006 |
140 |
| Huawei Technologies Co., Ltd. | 124379 |
100 |
| Samsung Electronics Co., Ltd. | 158605 |
88 |
| Kandou Labs, S.A. | 339 |
86 |
| Texas Instruments Incorporated | 19639 |
55 |
| Micron Technology, Inc. | 27666 |
50 |
| Intel Corporation | 47162 |
48 |
| Avago Technologies International Sales Pte. Limited | 8536 |
40 |
| ZTE Corporation | 44288 |
37 |
| Ericsson | 22929 |
36 |
| Infineon Technologies AG | 8410 |
36 |
| Sony Corporation | 30097 |
34 |
| Rambus Inc. | 2249 |
29 |
| Microchip Technology Incorporated | 3353 |
29 |
| Apple Inc. | 59117 |
28 |
| LG Electronics Inc. | 75910 |
28 |
| Marvell Asia PTE, Ltd. | 6258 |
25 |
| Cavium International | 4581 |
23 |
| NEC Corporation | 37227 |
22 |
| Sony Semiconductor Solutions Corporation | 11764 |
21 |
| Other owners | 1460 |