Fine cellulose fiber and production method for same
US-11015291-B2 · May 25, 2021 · US
Catalysts used for the esterification · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08B3/02 |
| Official title | Catalysts used for the esterification |
| Display label | Catalysts used for the esterification |
| Total patents | 5 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11015291-B2 · May 25, 2021 · US
US-10851179-B2 · Dec 1, 2020 · US
US-10669404-B2 · Jun 2, 2020 · US
US-2019092926-A1 · Mar 28, 2019 · US
US-2016376379-A1 · Dec 29, 2016 · US