of internal-axis type

of internal-axis type · 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 codeF04C18/04
Official titleof internal-axis type
Display labelof internal-axis type
Total patents41

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
20156
20164
20173
20185
20196
20202
20217
20224
20231
20243

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 F04C18/04?
CPC F04C18/04 is the Cooperative Patent Classification code for “of internal-axis type.”
How many patents are filed under CPC F04C18/04 (of internal-axis type)?
Our database includes 41 publications tagged with this CPC code.
Is patent activity under CPC F04C18/04 growing?
Publication counts under this code: 1 in 2023 vs 3 in 2024 (latest complete years).