- 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: 22
10-year publication summary
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2
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3
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2
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2
|
1
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1
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1
|
1
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1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Comcast Cable Communications, LLC | 4075 |
4 |
| Adtran, Inc. | 443 |
2 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
2 |
| Arlington Technologies, LLC | 642 |
2 |
| Honeywell International Inc. | 13799 |
1 |
| Robert Bosch GmbH | 40953 |
1 |
| JVC Kenwood Corporation | 2774 |
1 |
| Airbus Defence and Space Oy | 27 |
1 |
| Cassidian Finland Oy | 17 |
1 |
| Genesys Telecommunications Laboratories, Inc. | 749 |
1 |
| Granite Telecommunications, LLC | 22 |
1 |
| Interactive Intelligence Group, Inc. | 58 |
1 |
| Nice Ltd. | 385 |
1 |
| Zoom Video Communications, Inc. | 819 |
1 |
| Alcatel Lucent | 4720 |
1 |
| InterDigital CE Patent Holdings, SAS | 1017 |
1 |
| Other owners | 0 |