- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/12 - Marking faulty circuits "busy"Enabling equipment to disengage itself from faulty circuits
Patent holdings for IPC class H04M 3/12
Total number of patents in this class: 21
10-year publication summary
|
3
|
2
|
2
|
1
|
1
|
1
|
1
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Comcast Cable Communications, LLC | 4498 |
4 |
| Adtran, Inc. | 432 |
2 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 882 |
2 |
| Arlington Technologies, LLC | 631 |
2 |
| Honeywell International Inc. | 14034 |
1 |
| Robert Bosch GmbH | 42004 |
1 |
| JVC Kenwood Corporation | 2940 |
1 |
| Airbus Defence and Space Oy | 27 |
1 |
| Cassidian Finland Oy | 16 |
1 |
| Granite Telecommunications, LLC | 30 |
1 |
| Nice Ltd. | 432 |
1 |
| Zoom Video Communications, Inc. | 556 |
1 |
| Alcatel Lucent | 4596 |
1 |
| Telefonaktiebolaget LM Ericsson (publ) | 27520 |
1 |
| InterDigital CE Patent Holdings, SAS | 1216 |
1 |
| Other owners | 0 |