Recycle content cellulose ester
US-2022227892-A1 · Jul 21, 2022 · US
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Apparatus for the preparation of alkali cellulose
Apparatus for the preparation of alkali cellulose · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08B1/10 |
| Official title | Apparatus for the preparation of alkali cellulose |
| Display label | Apparatus for the preparation of alkali cellulose |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for preparing alkali cellulose and cellulose ether
US-9617350-B2 · Apr 11, 2017 · US
Methods for preparing alkali cellulose and cellulose ether
US-9611333-B2 · Apr 4, 2017 · US
Methods for preparing alkali cellulose and cellulose ether
US-9534061-B2 · Jan 3, 2017 · US
Methods for preparing alkali cellulose and cellulose ether
US-9371398-B2 · Jun 21, 2016 · US
Process for improved production of alkali cellulose and cellulose derivatives
US-8993747-B2 · Mar 31, 2015 · US