- 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: 34
10-year publication summary
|
5
|
5
|
3
|
1
|
2
|
1
|
0
|
5
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Marvell International Ltd. | 1057 |
4 |
| Marvell Asia PTE, Ltd. | 6258 |
4 |
| Cavium International | 4581 |
4 |
| Infineon Technologies Americas Corp. | 1944 |
3 |
| Cisco Technology, Inc. | 22584 |
2 |
| Denso Corporation | 25676 |
2 |
| Samsung Electronics Co., Ltd. | 158605 |
1 |
| British Telecommunications Public Limited Company | 2599 |
1 |
| Sumitomo Electric Industries, Ltd. | 16331 |
1 |
| Xilinx, Inc. | 3940 |
1 |
| Nokia Solutions And Networks Oy | 7280 |
1 |
| Futurewei Technologies, Inc. | 3787 |
1 |
| Realtek Semiconductor Corp. | 3518 |
1 |
| Airoha Technology Corp. | 199 |
1 |
| Cable Television Laboratories, Inc. | 1110 |
1 |
| Ikanos Communications, Inc. | 86 |
1 |
| ROHDE & Schwarz GmbH & Co. KG | 1997 |
1 |
| Shenzhen Hollyland Technology Co., Ltd | 56 |
1 |
| MUFG Union Bank, N.A. | 439 |
1 |
| Avago Technologies International Sales Pte. Limited | 8536 |
1 |
| Other owners | 1 |