- All sections
- G - Physics
- G09F - Displayingadvertisingsignslabels or name-platesseals
- G09F 13/28 - Signs formed by filament-type lamps
Patent holdings for IPC class G09F 13/28
Total number of patents in this class: 5
10-year publication summary
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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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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
|
|---|---|---|
| Signcomp, LLC. | 19 |
2 |
| The Sloan Company, Inc. | 54 |
1 |
| Visual Graphic Systems Inc. | 30 |
1 |
| Optiva Technologies, Inc. | 9 |
1 |
| Other owners | 0 |