Liquefied petroleum gas {(liquefying by pressure and cold treatment F25J)}

Liquefied petroleum gas {(liquefying by pressure and cold treatment F25J)} · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC10L3/12
Official titleLiquefied petroleum gas {(liquefying by pressure and cold treatment F25J)}
Display labelLiquefied petroleum gas {(liquefying by pressure and cold treatment F25J)}
Total patents175

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
201516
201629
201713
201818
20197
202016
202119
202214
202317
202416
202510

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 C10L3/12?
CPC C10L3/12 is the Cooperative Patent Classification code for “Liquefied petroleum gas {(liquefying by pressure and cold treatment F25J)}.”
How many patents are filed under CPC C10L3/12 (Liquefied petroleum gas {(liquefying by pressure and cold treatment F25J)})?
Our database includes 175 publications tagged with this CPC code.
Is patent activity under CPC C10L3/12 growing?
Publication counts under this code: 16 in 2024 vs 10 in 2025 (latest complete years).