- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/493 - Testing echo effects or singing
Patent holdings for IPC class H04B 3/493
Total number of patents in this class: 35
10-year publication summary
|
1
|
5
|
5
|
3
|
1
|
2
|
1
|
0
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Marvell Asia PTE, Ltd. | 6552 |
7 |
| Marvell International Ltd. | 1181 |
5 |
| Cavium International | 5058 |
5 |
| Cisco Technology, Inc. | 19860 |
2 |
| Denso Corporation | 24230 |
2 |
| Samsung Electronics Co., Ltd. | 145416 |
1 |
| British Telecommunications Public Limited Company | 2621 |
1 |
| Sumitomo Electric Industries, Ltd. | 15428 |
1 |
| Xilinx, Inc. | 4008 |
1 |
| Nokia Solutions And Networks Oy | 6563 |
1 |
| Futurewei Technologies, Inc. | 3752 |
1 |
| Realtek Semiconductor Corp. | 3278 |
1 |
| Airoha Technology Corp. | 179 |
1 |
| Cable Television Laboratories, Inc. | 993 |
1 |
| Ikanos Communications, Inc. | 86 |
1 |
| ROHDE & Schwarz GmbH & Co. KG | 1921 |
1 |
| MUFG Union Bank, N.A. | 479 |
1 |
| Avago Technologies International Sales Pte. Limited | 8777 |
1 |
| Cable Television Labories, Inc. | 1 |
1 |
| Other owners | 0 |