Bleaching Trichomes to Remove Proteins
US-2025116064-A1 · Apr 10, 2025 · US
with peracids
with peracids · 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 | D21C9/166 |
| Official title | {with peracids} |
| Display label | with peracids |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bleaching trichomes to remove proteins
US-12215461-B2 · Feb 4, 2025 · US
Bleaching Trichomes to Remove Proteins
US-2024052567-A1 · Feb 15, 2024 · US
Bleaching trichomes to remove proteins
US-11846068-B2 · Dec 19, 2023 · US
High efficiency fiber bleaching process
US-11840805-B2 · Dec 12, 2023 · US
High Efficiency Fiber Bleaching Process
US-2023167604-A1 · Jun 1, 2023 · US
High efficiency fiber bleaching process
US-11591751-B2 · Feb 28, 2023 · US
Bleaching Trichomes to Remove Proteins
US-2022349123-A1 · Nov 3, 2022 · US
Bleaching trichomes to remove proteins
US-11427960-B2 · Aug 30, 2022 · US
Process for treating pulp
US-11072886-B2 · Jul 27, 2021 · US
High Efficiency Fiber Bleaching Process
US-2021079594-A1 · Mar 18, 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
Bleaching and shive reduction process for non-wood fibers
US-10844538-B2 · Nov 24, 2020 · US
Bleaching Trichomes to Remove Proteins
US-2020002887-A1 · Jan 2, 2020 · US
Method for extracting cellusose, hemicellulose and lignin from lignocellulose from plant biomass
US-2019249363-A1 · Aug 15, 2019 · US
A process for treating pulp
US-2019186075-A1 · Jun 20, 2019 · US
Method for delignifying and bleaching pulp
US-10006169-B2 · Jun 26, 2018 · US
Post-treatment to enhance the enzymatic hydrolysis of pretreated lignocellulosic biomass
US-9914948-B2 · Mar 13, 2018 · US
Excess heat recovery during high temperature pulp bleaching
US-9777431-B1 · Oct 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21C9/166?
- CPC D21C9/166 is the Cooperative Patent Classification code for “with peracids.”
- How many patents are filed under CPC D21C9/166 (with peracids)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC D21C9/166 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).