Process and plant for recycling textiles
US-2026042892-A1 · Feb 12, 2026 · US
using inorganic agents
using inorganic agents · 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 | D06L4/13 |
| Official title | using inorganic agents |
| Display label | using inorganic agents |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for preparing carbamated cellulose fibers and method for preparing carbamated cellulose fine fibers
US-2025389085-A1 · Dec 25, 2025 · US
Disposal method for waste fabric containing polyester, nylon, and dye
US-12410298-B2 · Sep 9, 2025 · US
Decolorization method of polyester fabric
US-12344991-B2 · Jul 1, 2025 · US
Method for degumming and decolorizing polyester fabric
US-2025066968-A1 · Feb 27, 2025 · US
Cross-linked cellulosic fibers
US-2024279846-A1 · Aug 22, 2024 · US
Process and plant for recycling textiles
US-2024270926-A1 · Aug 15, 2024 · US
Cross-linked cellulosic fibers
US-12000066-B2 · Jun 4, 2024 · US
Compositions for oxidizing garments and related methods
US-2024018714-A1 · Jan 18, 2024 · US
Compositions for oxidizing garments and related methods
US-11718951-B2 · Aug 8, 2023 · US
Disposal method for waste fabric containing polyester, nylon, and dye
US-2023127947-A1 · Apr 27, 2023 · US
Decolorization method of polyester fabric
US-2023082495-A1 · Mar 16, 2023 · US
Process for the preparation of essential oils modified nanocellulose and application thereof
US-11427651-B2 · Aug 30, 2022 · US
Cross-linked cellulosic fibers
US-2021054532-A1 · Feb 25, 2021 · US
A process for the preparation of essential oils modified nanocellulose and application thereof
US-2021054104-A1 · Feb 25, 2021 · US
Bleaching and shive reduction for non-wood fibers
US-2021032801-A1 · Feb 4, 2021 · US
Bleaching and shive reduction process for non-wood fibers
US-2021032812-A1 · Feb 4, 2021 · US
Compositions for oxidizing garments and related methods
US-2021002815-A1 · Jan 7, 2021 · US
Stabilization of sodium dithionite by means of various additives
US-10850982-B2 · Dec 1, 2020 · US
Bleaching and shive reduction process for non-wood fibers
US-10844538-B2 · Nov 24, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06L4/13?
- CPC D06L4/13 is the Cooperative Patent Classification code for “using inorganic agents.”
- How many patents are filed under CPC D06L4/13 (using inorganic agents)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC D06L4/13 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).