- All sections
- G - Physics
- G08B - Signalling or calling systemsorder telegraphsalarm systems
- G08B 5/18 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using hydraulic transmissionVisible signalling systems, e.g. personal calling systems, remote indication of seats occupied using pneumatic transmission with indicator element moving rectilinearly
Patent holdings for IPC class G08B 5/18
Total number of patents in this class: 2
10-year publication summary
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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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0
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1
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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
|
|---|---|---|
| President and Fellows of Harvard College | 6048 |
1 |
| Axiom Industries Ltd. | 5 |
1 |
| Other owners | 0 |