Cellulose esters and cellulose ester fibers having recycled content from multiple sources
US-2026062502-A1 · Mar 5, 2026 · US
Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00)
Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00) · 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 | C08B3/20 |
| Official title | Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00) |
| Display label | Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00) |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fibrous cellulose, fibrous cellulose composite resin, and method for manufacturing fibrous cellulose
US-12559578-B2 · Feb 24, 2026 · US
Method for producing cellulose-fiber-containing material, method for producing reaction cellulose fibers, and method for producing reaction microfibers
US-2025369189-A1 · Dec 4, 2025 · US
Method for preparing hydrophobic cellulose using pickering emulsion and hydrophobic cellulose prepared using the same
US-2025270762-A1 · Aug 28, 2025 · US
Method for preparing a thermoplastic composition
US-2025197578-A1 · Jun 19, 2025 · US
Method for preparing a thermoplastic composition
US-2025179253-A1 · Jun 5, 2025 · US
Method for preparing a thermoplastic composition
US-2025171594-A1 · May 29, 2025 · US
Ply fibrous product
US-12305336-B2 · May 20, 2025 · US
Binder for lithium ion batteries, and electrode and separator using same
US-2025158069-A1 · May 15, 2025 · US
Fine cellulose fibers and production method therefor, nonwoven fabric, and fiber-reinforced resin and production method therefor
US-12163287-B2 · Dec 10, 2024 · US
Highly Heat-Resistant Resin Composite Including Chemically Modified, Fine Cellulose Fibers
US-2024309208-A1 · Sep 19, 2024 · US
Fine Cellulose Fibers and Production Method Therefor, Nonwoven Fabric, and Fiber-Reinforced Resin and Production Method Therefor
US-2024263396-A1 · Aug 8, 2024 · US
Fibrous cellulose-containing material and method for producing same, dried fibrous cellulose and method for producing same, and fibrous cellulose composite resin and method for producing same
US-12037482-B2 · Jul 16, 2024 · US
Fibrous cellulose and method for manufacturing the same, and fibrous cellulose composite resin and method for manufacturing the same
US-12012469-B2 · Jun 18, 2024 · US
Fibrous cellulose, fibrous cellulose composite resin, and method for manufacturing fibrous cellulose
US-2023159665-A1 · May 25, 2023 · US
Fibrous cellulose, method for manufacturing same, and resin composition
US-11634509-B2 · Apr 25, 2023 · US
A ply fibrous product
US-2023071802-A1 · Mar 9, 2023 · US
Resin molded body production method
US-11572447-B2 · Feb 7, 2023 · US
Resin Molded Body Production Method
US-2022315714-A1 · Oct 6, 2022 · US
Method for producing resin composition
US-2022243044-A1 · Aug 4, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08B3/20?
- CPC C08B3/20 is the Cooperative Patent Classification code for “Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00).”
- How many patents are filed under CPC C08B3/20 (Esterification with maintenance of the fibrous structure of the cellulose (surface esterification of textiles D06M13/00))?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C08B3/20 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).