- All sections
- G - Physics
- G08B - Signalling or calling systemsorder telegraphsalarm systems
- G08B 1/04 - Systems for signalling characterised solely by the form of transmission of the signal using hydraulic transmissionSystems for signalling characterised solely by the form of transmission of the signal using pneumatic transmission
Patent holdings for IPC class G08B 1/04
Total number of patents in this class: 6
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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2
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1
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1
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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
|
|---|---|---|
| Apple Inc. | 54937 |
2 |
| Brightek Optoelectronic Co., Ltd | 1 |
1 |
| Cybervision Co., Ltd. | 2 |
1 |
| Guanghua Lingang Engineering Application and Technology R&D (Shanghai) Co., Ltd. | 46 |
1 |
| ZHANG, Yingjun | 2 |
1 |
| Other owners | 0 |