Processes and systems for biomass impregnation to improve conversion to sugars, chemicals, fuels, and materials
US-2026009178-A1 · Jan 8, 2026 · US
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in presence of O2, e.g. air
in presence of O2, e.g. air · 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 | D21C3/026 |
| Official title | {in presence of O2, e.g. air} |
| Display label | in presence of O2, e.g. air |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 2 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High yield chemical pulping and bleaching process
US-12435469-B2 · Oct 7, 2025 · US
Processes and systems for biomass impregnation to improve conversion to sugars, chemicals, fuels, and materials
US-12359371-B2 · Jul 15, 2025 · US
Method for preparing fluff pulp from bamboos and fluff pulp prepared thereby
US-12286750-B2 · Apr 29, 2025 · US
Method for preparing fluff pulp from bamboos and fluff pulp prepared thereby
US-2024328083-A1 · Oct 3, 2024 · US
Method of pulping cotton-based raw material
US-2024199765-A1 · Jun 20, 2024 · US
Method of pulping cotton-based raw material
US-11939405-B2 · Mar 26, 2024 · US
High yield chemical pulping and bleaching process
US-2023265609-A1 · Aug 24, 2023 · US
Processes and systems for biomass impregnation to improve conversion to sugars, chemicals, fuels, and materials
US-2021131031-A1 · May 6, 2021 · US
Method of pulping cotton-based raw material
US-2021130501-A1 · May 6, 2021 · US
Method for delignifying and bleaching pulp
US-10006169-B2 · Jun 26, 2018 · US
Method and compositions for oxygen delignification of chemical pulp
US-2018030651-A1 · Feb 1, 2018 · US
Method for delignifying and bleaching pulp
US-2016298294-A1 · Oct 13, 2016 · US