- All sections
- H - Electricity
- H04Q - Selecting
- H04Q 3/28 - Circuit arrangements for first stage of hunting switching for line finders comprising main groups and subgroups
Patent holdings for IPC class H04Q 3/28
Total number of patents in this class: 3
10-year publication summary
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0
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0
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0
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0
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0
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0
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0
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2
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Battelle Memorial Institute | 2481 |
2 |
| Airbus DS Electronics and Border Security GmbH, a legal entity | 31 |
1 |
| Other owners | 0 |