- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/42 - Circuits for by-passing of ringing signals
Patent holdings for IPC class H04B 3/42
Total number of patents in this class: 9
10-year publication summary
|
1
|
0
|
0
|
1
|
5
|
0
|
1
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 23338 |
2 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 8764 |
1 |
| CenturyLink Intellectual Property LLC | 1130 |
1 |
| Microchip Technology Incorporated | 2644 |
1 |
| PPC Broadband, Inc. | 1017 |
1 |
| Soken Inc. | 211 |
1 |
| Marvell Asia PTE, Ltd. | 6841 |
1 |
| Cavium International | 5549 |
1 |
| Other owners | 0 |