with fuel supply in stages

with fuel supply in stages · 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 codeF23C6/047
Official title{with fuel supply in stages}
Display labelwith fuel supply in stages
Total patents90

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
20158
201611
201710
201812
201913
20209
20218
20225
20234
20244
20254
20262

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 F23C6/047?
CPC F23C6/047 is the Cooperative Patent Classification code for “with fuel supply in stages.”
How many patents are filed under CPC F23C6/047 (with fuel supply in stages)?
Our database includes 90 publications tagged with this CPC code.
Is patent activity under CPC F23C6/047 growing?
Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).