Contaminant removal from coal tar-derived crude phenols
US-2024182392-A1 · Jun 6, 2024 · US
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from the tar industry
from the tar industry · 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 | C07C37/007 |
| Official title | {from the tar industry} |
| Display label | from the tar industry |
| Total patents | 5 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dealklylation and transalkylation of mixed phenols to make cresols
US-11485694-B2 · Nov 1, 2022 · US
Dealklylation and transalkylation of mixed phenols to make cresols
US-2021139399-A1 · May 13, 2021 · US
Process for purifying products from coal tar
US-9162952-B2 · Oct 20, 2015 · US
Process for purifying products from coal tar
US-2015141708-A1 · May 21, 2015 · US