What is CPC C09C1/0018?

CPC C09C1/0018 is the Cooperative Patent Classification code for “uncoated and unlayered plate-like particles.”

How many patents are filed under CPC C09C1/0018 (uncoated and unlayered plate-like particles)?

Our database includes 60 publications tagged with this CPC code.

Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).

uncoated and unlayered plate-like particles · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	C09C1/0018
Official title	{uncoated and unlayered plate-like particles}
Display label	uncoated and unlayered plate-like particles
Total patents	60

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

Filing activity over the last five years is rapidly declining.

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

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

What is CPC C09C1/0018?: CPC C09C1/0018 is the Cooperative Patent Classification code for “uncoated and unlayered plate-like particles.”
How many patents are filed under CPC C09C1/0018 (uncoated and unlayered plate-like particles)?: Our database includes 60 publications tagged with this CPC code.
Is patent activity under CPC C09C1/0018 growing?: Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).