gaseous and liquid fuel

gaseous and liquid fuel · 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 codeF23D2204/10
Official titlegaseous and liquid fuel
Display labelgaseous and liquid fuel
Total patents39

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20151
20161
20173
20186
20192
20206
20212
20224
20235
20243
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 F23D2204/10?
CPC F23D2204/10 is the Cooperative Patent Classification code for “gaseous and liquid fuel.”
How many patents are filed under CPC F23D2204/10 (gaseous and liquid fuel)?
Our database includes 39 publications tagged with this CPC code.
Is patent activity under CPC F23D2204/10 growing?
Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).