Cellulose-based absorbent material and process for its production
US-2026097389-A1 · Apr 9, 2026 · US
substituted with nitrogen-containing radicals
substituted with nitrogen-containing radicals · 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 | C08L1/288 |
| Official title | {substituted with nitrogen-containing radicals} |
| Display label | substituted with nitrogen-containing radicals |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 5 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Chemical functionalization of cellulosic materials with diazo compounds
US-12559577-B2 · Feb 24, 2026 · US
Quaternized cellulose-based resin and preparation method and application thereof
US-2025333546-A1 · Oct 30, 2025 · US
Quaternized cellulose-based resin and preparation method and application thereof
US-12454583-B1 · Oct 28, 2025 · US
Fibrous cellulose composite resin and production method therefor, and resin reinforcing material
US-12435211-B2 · Oct 7, 2025 · US
Solid of microfibrous cellulose and method for producing solid of microfibrous cellulose
US-2025075060-A1 · Mar 6, 2025 · US
A Method For Producing Cationic Saccharides
US-2024262855-A1 · Aug 8, 2024 · US
A laundry treatment formulation
US-2023365896-A1 · Nov 16, 2023 · US
Composite cellulose nanosheet with excellent transparency and strength and manufacturing method thereof
US-11718720-B2 · Aug 8, 2023 · US
Chemical functionalization of cellulosic materials with diazo compounds
US-2023183383-A1 · Jun 15, 2023 · US
Composition
US-11655434-B2 · May 23, 2023 · US
Method for producing cationized cellulose and cationized cellulose
US-2023014619-A1 · Jan 19, 2023 · US
Cellulose resin composition, molded body and product using same, and a method for producing cellulose resin composition
US-11434350-B2 · Sep 6, 2022 · US
Fabric treatment composition
US-11359166-B2 · Jun 14, 2022 · US
Fibrous cellulose composite resin and production method therefor, and resin reinforcing material
US-2022135781-A1 · May 5, 2022 · US
Composite cellulose nanosheet with excellent transparency and strength and manufacturing method thereof
US-2021355289-A1 · Nov 18, 2021 · US
Cellulose resin composition, molded body and product using same, and a method for producing cellulose resin composition
US-2021070966-A1 · Mar 11, 2021 · US
Omniphilic nano-vesicles based on modified polysaccharides for delivery of active agents
US-2021054106-A1 · Feb 25, 2021 · US
Fabric treatment composition
US-2020392429-A1 · Dec 17, 2020 · US
Cationic cellulose and composition for treating hair, skin, or fiber including same
US-2020375871-A1 · Dec 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08L1/288?
- CPC C08L1/288 is the Cooperative Patent Classification code for “substituted with nitrogen-containing radicals.”
- How many patents are filed under CPC C08L1/288 (substituted with nitrogen-containing radicals)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C08L1/288 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).