- 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: 105
10-year publication summary
|
11
|
15
|
6
|
11
|
11
|
7
|
6
|
5
|
5
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rambus Inc. | 2314 |
12 |
| NEC Corporation | 32703 |
8 |
| International Business Machines Corporation | 60644 |
5 |
| Morse Micro Pty. Ltd. | 21 |
5 |
| Ericsson | 20417 |
4 |
| Huawei Technologies Co., Ltd. | 100781 |
4 |
| Avago Technologies International Sales Pte. Limited | 9260 |
4 |
| Alcatel Lucent | 4720 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
4 |
| British Telecommunications Public Limited Company | 2575 |
3 |
| Alcatel Lucent SA | 1723 |
3 |
| Cypress Semiconductor Corporation | 1642 |
3 |
| Cohere Technologies, Inc. | 193 |
3 |
| Apple Inc. | 50209 |
2 |
| Intel Corporation | 45621 |
2 |
| Electronics and Telecommunications Research Institute | 8830 |
2 |
| NVIDIA Corporation | 6381 |
2 |
| Nokia Technologies Oy | 15057 |
2 |
| Industry-University Cooperation Foundation Hanyang University | 1001 |
2 |
| U.S. Bank National Association | 728 |
2 |
| Other owners | 29 |