Optical fiber end face refractive index matching layer
US-2025362447-A1 · Nov 27, 2025 · US
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Contacting the fibres with applicators, e.g. rolls
Contacting the fibres with applicators, e.g. rolls · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C03C25/20 |
| Official title | Contacting the fibres with applicators, e.g. rolls |
| Display label | Contacting the fibres with applicators, e.g. rolls |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Glass direct roving production method and glass direct roving
US-2025320156-A1 · Oct 16, 2025 · US
Glass direct roving production method and glass direct roving
US-12365621-B2 · Jul 22, 2025 · US
Method for manufacturing optical fiber
US-12291481-B2 · May 6, 2025 · US
Pre-impregnated nonwoven mats having improved fire performance
US-2025129223-A1 · Apr 24, 2025 · US
Resorbable glass fiber coated with a sizing and method of preparing such
US-2024400442-A1 · Dec 5, 2024 · US
Method for manufacturing optical fiber
US-2024199480-A1 · Jun 20, 2024 · US
Resin coating device, apparatus for producing optical fiber, and method of producing optical fiber
US-2024174562-A1 · May 30, 2024 · US
Method for manufacturing aerogel composite and aerogel composite
US-2023331560-A1 · Oct 19, 2023 · US
Bi- or multicomponent fibres for large composite parts
US-2023167023-A1 · Jun 1, 2023 · US
Glass direct roving production method and glass direct roving
US-2022298066-A1 · Sep 22, 2022 · US
High speed draw optical fiber coating system and method
US-11407682-B2 · Aug 9, 2022 · US
Bio-based binders for insulation and non-woven mats
US-2022169565-A1 · Jun 2, 2022 · US
Bio-based binders for insulation and non-woven mats
US-11286204-B2 · Mar 29, 2022 · US
Multi-Component Fibre and Production Method
US-2021198811-A1 · Jul 1, 2021 · US
High speed draw optical fiber coating system and method
US-2021032160-A1 · Feb 4, 2021 · US
Metal-Coated Glass Fiber, Metal-Coated Glass Fiber Strand, Method for Manufacturing Metal-Coated Glass Fiber, and Method for Manufacturing Metal-Coated Glass Fiber Strand
US-2020079690-A1 · Mar 12, 2020 · US
Fibersizing with small amounts of nanomaterials
US-10479726-B2 · Nov 19, 2019 · US
Insulative products having bio-based binders
US-10000666-B2 · Jun 19, 2018 · US
Fibersizing with small amounts of nanomaterials
US-2018044233-A1 · Feb 15, 2018 · US