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comprising S or a sulfur compound

comprising S or a sulfur compound · 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 codeC22C33/0221
Official title{comprising S or a sulfur compound}
Display labelcomprising S or a sulfur compound
Total patents21

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20152
20163
20171
20184
20195
20203
20212
20231

Representative patents

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