Mixing tubes; Burner heads

Mixing tubes; Burner heads · 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 codeF23D11/40
Official titleMixing tubes; Burner heads
Display labelMixing tubes; Burner heads
Total patents40

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
20168
20175
20185
20195
20204
20212
20224
20231

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 F23D11/40?
CPC F23D11/40 is the Cooperative Patent Classification code for “Mixing tubes; Burner heads.”
How many patents are filed under CPC F23D11/40 (Mixing tubes; Burner heads)?
Our database includes 40 publications tagged with this CPC code.
Is patent activity under CPC F23D11/40 growing?
Publication counts under this code: 4 in 2022 vs 1 in 2023 (latest complete years).