- 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: 62
10-year publication summary
|
0
|
5
|
4
|
8
|
5
|
5
|
5
|
4
|
2
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
5 |
| Microsoft Technology Licensing, LLC | 51439 |
3 |
| Anagog Ltd. | 41 |
3 |
| Qualcomm Incorporated | 76576 |
2 |
| British Telecommunications Public Limited Company | 2575 |
2 |
| Canon Inc. | 36841 |
2 |
| Orange S.A. | 1379 |
2 |
| Capital One Services, LLC. | 7551 |
2 |
| Ercom Engineering Reseaux Communications | 19 |
2 |
| High SEC Labs Ltd. | 81 |
2 |
| T-Mobile USA, Inc. | 3668 |
2 |
| Vivo Mobile Communication Co., Ltd. | 9833 |
2 |
| Sorenson IP Holdings, LLC | 287 |
2 |
| Staton Techiya, LLC | 254 |
2 |
| DM Staton Family Limited Partnership | 23 |
2 |
| Securus Technologies, LLC | 292 |
2 |
| BlackBerry Limited | 5958 |
1 |
| Fujitsu Limited | 19265 |
1 |
| Cisco Technology, Inc. | 18858 |
1 |
| ZTE Corporation | 39218 |
1 |
| Other owners | 21 |