- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/08 - Indicating faults in circuits or apparatus
Patent holdings for IPC class H04M 3/08
Total number of patents in this class: 276
10-year publication summary
|
30
|
22
|
12
|
4
|
5
|
4
|
4
|
6
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| British Telecommunications Public Limited Company | 2602 |
24 |
| AT&T Intellectual Property I, L.P. | 10002 |
17 |
| Ericsson | 22785 |
15 |
| Huawei Technologies Co., Ltd. | 123543 |
10 |
| Adtran, Inc. | 404 |
9 |
| Cisco Technology, Inc. | 22503 |
7 |
| Assia SPE LLC, c/o The Corporation Trust Company | 91 |
6 |
| Microsoft Technology Licensing, LLC | 54463 |
5 |
| Adaptive Spectrum and Signal Alignment, Inc. | 99 |
5 |
| Global Tel*Link Corporation | 433 |
4 |
| MaxLinear, Inc. | 872 |
4 |
| Avago Technologies International Sales Pte. Limited | 8552 |
4 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 1111 |
4 |
| Amphenol Network Solutions, Inc. | 75 |
4 |
| Verizon Patent And Licensing Inc. | 7565 |
3 |
| Amazon Technologies, Inc. | 28118 |
3 |
| ARRIS Enterprises LLC | 3407 |
3 |
| CenturyLink Intellectual Property LLC | 1277 |
3 |
| Fluke Corporation | 999 |
3 |
| inContact, Inc. | 97 |
3 |
| Other owners | 140 |