What is CPC B43K8/04?

CPC B43K8/04 is the Cooperative Patent Classification code for “Arrangements for feeding ink to writing-points.”

How many patents are filed under CPC B43K8/04 (Arrangements for feeding ink to writing-points)?

Our database includes 48 publications tagged with this CPC code.

Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).

Arrangements for feeding ink to writing-points · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	B43K8/04
Official title	Arrangements for feeding ink to writing-points
Display label	Arrangements for feeding ink to writing-points
Total patents	48

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

Filing activity over the last five years is growing.

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 B43K8/04?: CPC B43K8/04 is the Cooperative Patent Classification code for “Arrangements for feeding ink to writing-points.”
How many patents are filed under CPC B43K8/04 (Arrangements for feeding ink to writing-points)?: Our database includes 48 publications tagged with this CPC code.
Is patent activity under CPC B43K8/04 growing?: Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).