Arrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)}

Arrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)} · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB64C11/46
Official titleArrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)}
Display labelArrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)}
Total patents314

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
20153
20165
20178
201822
201937
202056
202144
202243
202333
202428
202529
20266

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 B64C11/46?
CPC B64C11/46 is the Cooperative Patent Classification code for “Arrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)}.”
How many patents are filed under CPC B64C11/46 (Arrangements of, or constructional features peculiar to, multiple propellers {(B64C11/306 takes precedence)})?
Our database includes 314 publications tagged with this CPC code.
Is patent activity under CPC B64C11/46 growing?
Publication counts under this code: 28 in 2024 vs 29 in 2025 (latest complete years).