Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00)

Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00) · 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 codeB64C37/02
Official titleFlying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00)
Display labelFlying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00)
Total patents158

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20156
20165
20175
201811
201919
202029
202115
202230
202318
202412
20256
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 B64C37/02?
CPC B64C37/02 is the Cooperative Patent Classification code for “Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00).”
How many patents are filed under CPC B64C37/02 (Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00))?
Our database includes 158 publications tagged with this CPC code.
Is patent activity under CPC B64C37/02 growing?
Publication counts under this code: 12 in 2024 vs 6 in 2025 (latest complete years).