What is CPC F28F9/0214?

CPC F28F9/0214 is the Cooperative Patent Classification code for “having only longitudinal partitions.”

How many patents are filed under CPC F28F9/0214 (having only longitudinal partitions)?

Our database includes 113 publications tagged with this CPC code.

Publication counts under this code: 11 in 2024 vs 12 in 2025 (latest complete years).

having only longitudinal partitions · 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	F28F9/0214
Official title	{having only longitudinal partitions}
Display label	having only longitudinal partitions
Total patents	113

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 F28F9/0214?: CPC F28F9/0214 is the Cooperative Patent Classification code for “having only longitudinal partitions.”
How many patents are filed under CPC F28F9/0214 (having only longitudinal partitions)?: Our database includes 113 publications tagged with this CPC code.
Is patent activity under CPC F28F9/0214 growing?: Publication counts under this code: 11 in 2024 vs 12 in 2025 (latest complete years).