What is CPC F04B33/00?

CPC F04B33/00 is the Cooperative Patent Classification code for “Pumps actuated by muscle power, e.g. for inflating.”

How many patents are filed under CPC F04B33/00 (Pumps actuated by muscle power, e.g. for inflating)?

Our database includes 86 publications tagged with this CPC code.

Publication counts under this code: 16 in 2024 vs 8 in 2025 (latest complete years).

Pumps actuated by muscle power, e.g. for inflating · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F04B33/00
Official title	Pumps actuated by muscle power, e.g. for inflating
Display label	Pumps actuated by muscle power, e.g. for inflating
Total patents	86

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 F04B33/00?: CPC F04B33/00 is the Cooperative Patent Classification code for “Pumps actuated by muscle power, e.g. for inflating.”
How many patents are filed under CPC F04B33/00 (Pumps actuated by muscle power, e.g. for inflating)?: Our database includes 86 publications tagged with this CPC code.
Is patent activity under CPC F04B33/00 growing?: Publication counts under this code: 16 in 2024 vs 8 in 2025 (latest complete years).