having only transversal partitions

having only transversal partitions · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF28F9/0209
Official title{having only transversal partitions}
Display labelhaving only transversal partitions
Total patents144

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20159
20165
201712
201812
201913
202022
202118
202217
202313
20249
202513
20261

Representative patents

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

Frequently asked questions

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

What is CPC F28F9/0209?
CPC F28F9/0209 is the Cooperative Patent Classification code for “having only transversal partitions.”
How many patents are filed under CPC F28F9/0209 (having only transversal partitions)?
Our database includes 144 publications tagged with this CPC code.
Is patent activity under CPC F28F9/0209 growing?
Publication counts under this code: 9 in 2024 vs 13 in 2025 (latest complete years).