Carbon fiber bundle and method for producing the same
US-2020385892-A1 · Dec 10, 2020 · US
Separating or spreading
Separating or spreading · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D02J1/18 |
| Official title | Separating or spreading |
| Display label | Separating or spreading |
| Total patents | 135 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 18 |
| 2020 | 16 |
| 2021 | 18 |
| 2022 | 15 |
| 2023 | 17 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing and manufacturing device for partial split-fiber fiber bundle and partial split-fiber fiber bundle
US-10676311-B2 · Jun 9, 2020 · US
Process for steam drawing carbon-fiber precursor acrylic fiber bundle
US-10604871-B2 · Mar 31, 2020 · US
An apparatus and method for spreading fibres
US-2020063291-A1 · Feb 27, 2020 · US
Partially separated fiber bundle, production method for partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method for fiber-reinforced resin molding material using partially separated fiber bundle
US-10569986-B2 · Feb 25, 2020 · US
Filament winding device
US-10532520-B2 · Jan 14, 2020 · US
Increasing the filament count of carbon fiber tows
US-2019368080-A1 · Dec 5, 2019 · US
Partially separated bundle and method of manufacturing same, chopped fiber bundle using same, and fiber-reinforced resin forming material
US-2019352474-A1 · Nov 21, 2019 · US
Fiber structure for fiber reinforced composite material, method for manufacturing fiber structure for fiber reinforced composite material, and fiber reinforced composite material
US-10479871-B2 · Nov 19, 2019 · US
Partially separated fiber bundle, production method for partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method for fiber-reinforced resin molding material using partially separated fiber bundle
US-2019263625-A1 · Aug 29, 2019 · US
Process of debundling carbon fiber tow and molding compositions containing such fibers
US-10337129-B2 · Jul 2, 2019 · US
Systems and methods for controlling carbon tow width
US-2019194833-A1 · Jun 27, 2019 · US
Method of increasing the uniformity of chemical vapor deposition on fibrous material through the imposition of pressure waves
US-2019185387-A1 · Jun 20, 2019 · US
Fugitive fiber commingling to provide loft in ceramic fiber tows
US-2019177240-A1 · Jun 13, 2019 · US
Production method for separated fiber bundle, separated fiber bundle, fiber-reinforced resin molding material using separated fiber bundle, and production method for fiber-reinforced resin molding material using separated fiber bundle
US-2019177887-A1 · Jun 13, 2019 · US
Partially separated fiber bundle, production method of partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method of fiber-reinforced resin molding material using partially separated fiber bundle
US-2019177888-A1 · Jun 13, 2019 · US
Partially separated fiber bundle, production method of partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method of fiber-reinforced resin molding material using partially separated fiber bundle
US-2019161890-A1 · May 30, 2019 · US
Production method for partially separated fiber bundle, partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method for fiber-reinforced resin molding material using partially separated fiber bundle
US-2019153632-A1 · May 23, 2019 · US
Systems and methods for controlling carbon tow width
US-10260174-B2 · Apr 16, 2019 · US
Continuous multiple tow coating reactor
US-2019093231-A1 · Mar 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D02J1/18?
- CPC D02J1/18 is the Cooperative Patent Classification code for “Separating or spreading.”
- How many patents are filed under CPC D02J1/18 (Separating or spreading)?
- Our database includes 135 publications tagged with this CPC code.
- Is patent activity under CPC D02J1/18 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).