What is CPC F04B37/16?

CPC F04B37/16 is the Cooperative Patent Classification code for “Means for nullifying unswept space.”

How many patents are filed under CPC F04B37/16 (Means for nullifying unswept space)?

Our database includes 68 publications tagged with this CPC code.

Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).

Means for nullifying unswept space · 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	F04B37/16
Official title	Means for nullifying unswept space
Display label	Means for nullifying unswept space
Total patents	68

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

Filing activity over the last five years is stable.

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 F04B37/16?: CPC F04B37/16 is the Cooperative Patent Classification code for “Means for nullifying unswept space.”
How many patents are filed under CPC F04B37/16 (Means for nullifying unswept space)?: Our database includes 68 publications tagged with this CPC code.
Is patent activity under CPC F04B37/16 growing?: Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).