Decolorization method of polyester fabric
US-12344991-B2 · Jul 1, 2025 · US
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using reducing agents
using reducing 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 | D06L4/30 |
| Official title | using reducing agents |
| Display label | using reducing agents |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for degumming and decolorizing polyester fabric
US-2025066968-A1 · Feb 27, 2025 · US
Methods for decolorizing colored polymer material and preparing regenerated polymer, and decolorizing solution
US-2023235148-A1 · Jul 27, 2023 · US
Decolorization method of polyester fabric
US-2023082495-A1 · Mar 16, 2023 · US
Decolorization of Dyed Keratinic Fibers
US-2022040074-A1 · Feb 10, 2022 · 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
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
Discharge printing device and discharge printing method
US-10724172-B2 · Jul 28, 2020 · US
Bleaching and shive reduction process for non-wood fibers
US-10640899-B2 · May 5, 2020 · US
Method for decolorizing textile materials
US-10640914-B2 · May 5, 2020 · US
Method for decolorizing textile materials
US-2020115844-A9 · Apr 16, 2020 · US
Discharge printing device and discharge printing method
US-2019301087-A1 · Oct 3, 2019 · US
Method for decolorizing textile materials
US-2018209089-A1 · Jul 26, 2018 · US
Stabilization of sodium dithionite by means of various additives
US-2018134557-A1 · May 17, 2018 · US
Decolorization of dyed keratinic fibers
US-2017128341-A1 · May 11, 2017 · US
Reducing agent, ink-jet recording apparatus, discharge printing method, image forming method, reducing agent stabilizing method, and reducing agent enhancing method
US-9598815-B2 · Mar 21, 2017 · US
Bleaching and shive reduction process for non-wood fibers
US-2015337496-A1 · Nov 26, 2015 · US
Bleaching and shive reduction process for non-wood fibers
US-2015337485-A1 · Nov 26, 2015 · US