- All sections
- H - Electricity
- H04Q - Selecting
- H04Q 1/40 - Signalling arrangementsManipulation of signalling currents whereby duration of pulse or interval between two pulses is variable
Patent holdings for IPC class H04Q 1/40
Total number of patents in this class: 3
10-year publication summary
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147003 |
1 |
| Atmel Corporation | 954 |
1 |
| Amotech Co., Ltd. | 523 |
1 |
| Other owners | 0 |