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Bell-and-hopper arrangements

Bell-and-hopper arrangements · 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 codeC21B7/18
Official titleBell-and-hopper arrangements
Display labelBell-and-hopper arrangements
Total patents8

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20181
20192
20212
20221
20242

Representative patents

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