- 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. | 6551 |
7 |
Marvell International Ltd. | 1181 |
5 |
Cavium International | 5063 |
5 |
Cisco Technology, Inc. | 19845 |
2 |
Denso Corporation | 24223 |
2 |
Samsung Electronics Co., Ltd. | 145025 |
1 |
British Telecommunications Public Limited Company | 2620 |
1 |
Sumitomo Electric Industries, Ltd. | 15414 |
1 |
Xilinx, Inc. | 4007 |
1 |
Nokia Solutions And Networks Oy | 6557 |
1 |
Futurewei Technologies, Inc. | 3753 |
1 |
Realtek Semiconductor Corp. | 3276 |
1 |
Airoha Technology Corp. | 179 |
1 |
Cable Television Laboratories, Inc. | 993 |
1 |
Ikanos Communications, Inc. | 86 |
1 |
ROHDE & Schwarz GmbH & Co. KG | 1919 |
1 |
MUFG Union Bank, N.A. | 479 |
1 |
Avago Technologies International Sales Pte. Limited | 8786 |
1 |
Cable Television Labories, Inc. | 1 |
1 |
Other owners | 0 |