Fine fibrous cellulose, dispersed solution, sheet, laminated sheet, laminate, and method for producing fine fibrous cellulose
US-12553185-B2 · Feb 17, 2026 · US
Cellulose sulfate
Cellulose sulfate · 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 | C08B5/14 |
| Official title | Cellulose sulfate |
| Display label | Cellulose sulfate |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Direct production of sulfated cellulose nanofibrils
US-2025257498-A1 · Aug 14, 2025 · US
Composite and heat-ray absorbing film
US-2025215268-A1 · Jul 3, 2025 · US
Solid water-disintegrable composite and method for producing same
US-2025122365-A1 · Apr 17, 2025 · US
Fine cellulose fiber powder and method for producing fine cellulose fiber powder
US-2025019466-A1 · Jan 16, 2025 · US
Method for producing micronized hydrophobically modified cellulose fiber
US-12180615-B2 · Dec 31, 2024 · US
Fine cellulose fiber solid material and method for producing fine cellulose fiber solid material
US-2024409670-A1 · Dec 12, 2024 · US
Sulfate ester modified cellulose nanofibers and method for producing cellulose nanofibers
US-12084525-B2 · Sep 10, 2024 · US
Process for preparing polysaccharide sulfates, and polysaccharide sulfate
US-2024287209-A1 · Aug 29, 2024 · US
Dispersion, composite, and producing methods therefor
US-2024183107-A1 · Jun 6, 2024 · US
Composition comprising cellulose nanofiber and lignin or complex of these components, and method for producing lignocellulose-derived material
US-2024166772-A1 · May 23, 2024 · US
Self-service operation for bare-metal servers
US-11716407-B2 · Aug 1, 2023 · US
Fine fibrous cellulose, dispersed solution, sheet, laminated sheet, laminate, and method for producing fine fibrous cellulose
US-2023203755-A1 · Jun 29, 2023 · US
Fibrous cellulose, fibrous cellulose dispersion, and fibrous cellulose production method
US-2023174678-A1 · Jun 8, 2023 · US
Production and use of phosphoethanolamine cellulose and derivatives
US-11667898-B2 · Jun 6, 2023 · US
Binder for positive electrode of lithium ion battery, slurry for forming positive electrode mixture layer of lithium ion battery, positive electrode for lithium ion battery, and lithium ion battery
US-2023124539-A1 · Apr 20, 2023 · US
Method for producing chemically modified cellulose fiber
US-11629454-B2 · Apr 18, 2023 · US
Sulfate ester modified cellulose nanofibers and method for producing cellulose nanofibers
US-2023054106-A1 · Feb 23, 2023 · US
Sulfate ester modified cellulose nanofibers and method for producing cellulose nanofibers
US-11535682-B2 · Dec 27, 2022 · US
Chemically modified cellulose fiber and method for producing the same
US-11459407-B2 · Oct 4, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08B5/14?
- CPC C08B5/14 is the Cooperative Patent Classification code for “Cellulose sulfate.”
- How many patents are filed under CPC C08B5/14 (Cellulose sulfate)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C08B5/14 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).