What is CPC F16K41/12?

CPC F16K41/12 is the Cooperative Patent Classification code for “with approximately flat diaphragm.”

How many patents are filed under CPC F16K41/12 (with approximately flat diaphragm)?

Our database includes 53 publications tagged with this CPC code.

Publication counts under this code: 7 in 2024 vs 8 in 2025 (latest complete years).

with approximately flat diaphragm · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F16K41/12
Official title	with approximately flat diaphragm
Display label	with approximately flat diaphragm
Total patents	53

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

Filing activity over the last five years is rapidly growing.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Answers are generated from the same data shown on this page.

What is CPC F16K41/12?: CPC F16K41/12 is the Cooperative Patent Classification code for “with approximately flat diaphragm.”
How many patents are filed under CPC F16K41/12 (with approximately flat diaphragm)?: Our database includes 53 publications tagged with this CPC code.
Is patent activity under CPC F16K41/12 growing?: Publication counts under this code: 7 in 2024 vs 8 in 2025 (latest complete years).