- All sections
- H - Electricity
- H04J - Multiplex communication
- H04J 1/18 - Frequency-division multiplex systems in which all the carriers are amplitude-modulated
Patent holdings for IPC class H04J 1/18
Total number of patents in this class: 6
10-year publication summary
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0
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1
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0
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1
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0
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1
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0
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0
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 58742 |
1 |
| Sony Corporation | 30181 |
1 |
| Robert Bosch GmbH | 44160 |
1 |
| Massachusetts Institute of Technology | 10251 |
1 |
| Charter Communications Operating, LLC | 1594 |
1 |
| Saratoga Data Systems, Inc. | 6 |
1 |
| Other owners | 0 |