- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 25/497 - Transmitting circuits; Receiving circuits using three or more amplitude levels by correlative coding, e.g. partial response coding or echo modulation coding
Patent holdings for IPC class H04L 25/497
Total number of patents in this class: 95
10-year publication summary
|
15
|
6
|
11
|
11
|
7
|
6
|
5
|
5
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rambus Inc. | 2331 |
12 |
| NEC Corporation | 34371 |
7 |
| Morse Micro Pty. Ltd. | 27 |
5 |
| Ericsson | 21125 |
4 |
| Huawei Technologies Co., Ltd. | 106664 |
4 |
| Avago Technologies International Sales Pte. Limited | 8938 |
4 |
| Alcatel Lucent | 4617 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 27389 |
4 |
| Alcatel Lucent SA | 1629 |
3 |
| Cypress Semiconductor Corporation | 1700 |
3 |
| Cohere Technologies, Inc. | 209 |
3 |
| Apple Inc. | 52680 |
2 |
| International Business Machines Corporation | 60095 |
2 |
| Electronics and Telecommunications Research Institute | 9012 |
2 |
| NVIDIA Corporation | 6743 |
2 |
| Nokia Technologies Oy | 16514 |
2 |
| Industry-University Cooperation Foundation Hanyang University | 1009 |
2 |
| U.S. Bank National Association | 734 |
2 |
| Research In Motion Limited | 2166 |
1 |
| Qualcomm Incorporated | 81758 |
1 |
| Other owners | 26 |