- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/82 - Line monitoring circuits for call progress or status discrimination
Patent holdings for IPC class H04M 1/82
Total number of patents in this class: 64
10-year publication summary
|
4
|
8
|
5
|
5
|
5
|
4
|
2
|
6
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 43739 |
7 |
| Capital One Services, LLC. | 9701 |
4 |
| Microsoft Technology Licensing, LLC | 54215 |
3 |
| Anagog Ltd. | 52 |
3 |
| Qualcomm Incorporated | 90109 |
2 |
| British Telecommunications Public Limited Company | 2596 |
2 |
| Canon Inc. | 42224 |
2 |
| Orange S.A. | 1608 |
2 |
| High SEC Labs Ltd. | 82 |
2 |
| T-Mobile USA, Inc. | 4388 |
2 |
| Vivo Mobile Communication Co., Ltd. | 13258 |
2 |
| Sorenson IP Holdings, LLC | 309 |
2 |
| Securus Technologies, LLC | 288 |
2 |
| ST Portfolio Holdings, LLC | 226 |
2 |
| ST R&dtech, LLC | 73 |
2 |
| BlackBerry Limited | 5003 |
1 |
| Fujitsu Limited | 16989 |
1 |
| Cisco Technology, Inc. | 22256 |
1 |
| ZTE Corporation | 43576 |
1 |
| Nokia Technologies Oy | 20244 |
1 |
| Other owners | 20 |