with semi-permeable walls separating the liquid from the respiratory gas

with semi-permeable walls separating the liquid from the respiratory gas · Cooperative Patent Classification (CPC)

Agriculture, food, personal care, health, and life sciences.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeA61M16/142
Official title{with semi-permeable walls separating the liquid from the respiratory gas}
Display labelwith semi-permeable walls separating the liquid from the respiratory gas
Total patents187

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20159
20164
201717
201817
201919
202021
202128
202218
202316
20249
202526
20263

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 A61M16/142?
CPC A61M16/142 is the Cooperative Patent Classification code for “with semi-permeable walls separating the liquid from the respiratory gas.”
How many patents are filed under CPC A61M16/142 (with semi-permeable walls separating the liquid from the respiratory gas)?
Our database includes 187 publications tagged with this CPC code.
Is patent activity under CPC A61M16/142 growing?
Publication counts under this code: 9 in 2024 vs 26 in 2025 (latest complete years).