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Porous or hollow inert particles (preparation C06B21/0091)

Porous or hollow inert particles (preparation C06B21/0091) · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

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CPC classification statistics
Metric	Value
CPC code	C06B23/003
Official title	{Porous or hollow inert particles (preparation C06B21/0091)}
Display label	Porous or hollow inert particles (preparation C06B21/0091)
Total patents	7

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Filing activity appears to be growing based on the most recent years.

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