Extraction of delignified, cellulose-based fibers from natural plant material, and materials incorporating such fibers
US-2026055552-A1 · Feb 26, 2026 · US
from specific plants, e.g. hemp fibres
from specific plants, e.g. hemp fibres · 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 | C04B18/248 |
| Official title | {from specific plants, e.g. hemp fibres} |
| Display label | from specific plants, e.g. hemp fibres |
| Total patents | 62 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Evaporative devices having delignified plant materials, and systems and methods for fabrication and use thereof
US-12509822-B2 · Dec 30, 2025 · US
Coal-based solid waste transport and filling integrated machine mining system and method
US-12467362-B2 · Nov 11, 2025 · US
Panel and method for producing a panel
US-12371379-B2 · Jul 29, 2025 · US
High performance glossy finish green hybrid composites with variable density and an improved process for making thereof
US-12227458-B2 · Feb 18, 2025 · US
Decorative panel, and decorative floor covering consisting of said panels
US-12215506-B2 · Feb 4, 2025 · US
Cement slurry compositions comprising pozzolanic cement additives and methods for improving development of compressive strengths in the cement slurry compositions
US-2024425743-A1 · Dec 26, 2024 · US
Cement slurry compositions comprising pozzolanic cement additives and methods for improving development of compressive strengths in the cement slurry compositions
US-12077709-B2 · Sep 3, 2024 · US
Ultra stable cementitious material formulation, process for its making, and ultra stable tile backer board formulation and processes for its making
US-2024243689-A1 · Jul 18, 2024 · US
Composition for insulating coating
US-2024199489-A1 · Jun 20, 2024 · US
Cement slurry compositions comprising pozzolanic cement additives and methods for improving development of compressive strengths in the cement slurry compositions
US-2024182774-A1 · Jun 6, 2024 · US
Methods of completing a well and apparatus therefor
US-11939834-B2 · Mar 26, 2024 · US
Biological cement with algal biomatter
US-2024076235-A1 · Mar 7, 2024 · US
Curing agent for disposal of municipal solid waste incineration (MSWI) fly ash and preparation method and use method thereof
US-11919811-B1 · Mar 5, 2024 · US
Curing agent for disposal of municipal solid waste incineration (mswi) fly ash and preparation method and use method thereof
US-2024059613-A1 · Feb 22, 2024 · US
Biomass waste materials as a set-retardation agent in cement or concrete
US-11851371-B2 · Dec 26, 2023 · US
Coal-based solid waste transport and filling integrated machine mining system and method
US-2023383653-A1 · Nov 30, 2023 · US
Panel and Method for Producing a Panel
US-2023347685-A1 · Nov 2, 2023 · US
Ultra stable cementitious material formulation, process for its making, and ultra stable tile backer board formulation and processes for its making
US-11777440-B2 · Oct 3, 2023 · US
Panel and method for producing a panel
US-11724537-B2 · Aug 15, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B18/248?
- CPC C04B18/248 is the Cooperative Patent Classification code for “from specific plants, e.g. hemp fibres.”
- How many patents are filed under CPC C04B18/248 (from specific plants, e.g. hemp fibres)?
- Our database includes 62 publications tagged with this CPC code.
- Is patent activity under CPC C04B18/248 growing?
- Publication counts under this code: 9 in 2024 vs 5 in 2025 (latest complete years).