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with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen

with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC01B25/222
Official titlewith sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
Display labelwith sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
Total patents22

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20171
20181
20193
20205
20214
20221
20231
20241
20253
20262

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.