with controlled internal environment

with controlled internal environment · 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 codeA41D13/002
Official titlewith controlled internal environment
Display labelwith controlled internal environment
Total patents148

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
20159
201621
201714
201816
201923
202012
202116
202213
202311
20249
20253
20261

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 A41D13/002?
CPC A41D13/002 is the Cooperative Patent Classification code for “with controlled internal environment.”
How many patents are filed under CPC A41D13/002 (with controlled internal environment)?
Our database includes 148 publications tagged with this CPC code.
Is patent activity under CPC A41D13/002 growing?
Publication counts under this code: 9 in 2024 vs 3 in 2025 (latest complete years).