Processes for producing cellulose pulp and pulp-derived products from lignocellulosic biomass
US-2017204563-A1 · Jul 20, 2017 · US
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calcium bisulfite
calcium 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 | D21C3/08 |
| Official title | calcium bisulfite |
| Display label | calcium bisulfite |
| Total patents | 4 |
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 | 2 |
| 2017 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for producing cellulose pulp and pulp-derived products from lignocellulosic biomass
US-9556557-B2 · Jan 31, 2017 · US
Processes for producing cellulose pulp and pulp-derived products from lignocellulosic biomass
US-2016222586-A1 · Aug 4, 2016 · US
Processes for producing cellulose pulp, sugars, and co-products from lignocellulosic biomass
US-9347176-B2 · May 24, 2016 · US