of combustion-air

of combustion-air · 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 codeF02D33/02
Official titleof combustion-air
Display labelof combustion-air
Total patents76

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
201511
201612
201712
201813
20194
20205
20213
20227
20232
20244
20252
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 F02D33/02?
CPC F02D33/02 is the Cooperative Patent Classification code for “of combustion-air.”
How many patents are filed under CPC F02D33/02 (of combustion-air)?
Our database includes 76 publications tagged with this CPC code.
Is patent activity under CPC F02D33/02 growing?
Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).