Treatment of biomass to dissolve lignin with ionic liquid composition
US-9765478-B2 · Sep 19, 2017 · US
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ammonium bisulfite
ammonium bisulfite · 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 | D21C3/14 |
| Official title | ammonium bisulfite |
| Display label | ammonium bisulfite |
| Total patents | 2 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Treatment
US-2016040354-A1 · Feb 11, 2016 · US