Process for preparing a solution of lignin in an aqueous medium
US-12331150-B2 · Jun 17, 2025 · US
Lignocellulosic material, e.g. wood, straw or bagasse · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09J197/02 |
| Official title | Lignocellulosic material, e.g. wood, straw or bagasse |
| Display label | Lignocellulosic material, e.g. wood, straw or bagasse |
| Total patents | 21 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 1 |
| 2020 | 3 |
| 2022 | 1 |
| 2024 | 3 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12331150-B2 · Jun 17, 2025 · US
US-12221545-B2 · Feb 11, 2025 · US
US-11976168-B2 · May 7, 2024 · US
US-2024043617-A1 · Feb 8, 2024 · US
US-2024043616-A1 · Feb 8, 2024 · US
US-2022033561-A1 · Feb 3, 2022 · US
US-10844223-B2 · Nov 24, 2020 · US
US-2020216672-A1 · Jul 9, 2020 · US
US-2020148925-A1 · May 14, 2020 · US
US-9855674-B2 · Jan 2, 2018 · US
US-9834483-B2 · Dec 5, 2017 · US
US-2017190073-A1 · Jul 6, 2017 · US
US-9617427-B2 · Apr 11, 2017 · US
US-9587114-B2 · Mar 7, 2017 · US
US-2017022118-A1 · Jan 26, 2017 · US
US-9499451-B2 · Nov 22, 2016 · US
US-2016046811-A1 · Feb 18, 2016 · US
US-2015284566-A1 · Oct 8, 2015 · US
US-2015284567-A1 · Oct 8, 2015 · US
US-2015101378-A1 · Apr 16, 2015 · US