Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder (colloidal silica C04B14/062 ; silica fume C04B18/146)

Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder (colloidal silica C04B14/062 ; silica fume C04B18/146) · 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 codeC04B20/008
Official title{Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder (colloidal silica C04B14/062 ; silica fume C04B18/146)}
Display labelMicro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder (colloidal silica C04B14/062 ; silica fume C04B18/146)
Total patents225

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
201522
201618
201720
201820
201926
202040
202121
202215
20239
202417
20259
20268

Representative patents

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

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C04B20/008?
CPC C04B20/008 is the Cooperative Patent Classification code for “Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder (colloidal silica C04B14/062 ; silica fume C04B18/146).”
How many patents are filed under CPC C04B20/008 (Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder (colloidal silica C04B14/062 ; silica fume C04B18/146))?
Our database includes 225 publications tagged with this CPC code.
Is patent activity under CPC C04B20/008 growing?
Publication counts under this code: 17 in 2024 vs 9 in 2025 (latest complete years).