in inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D1/76)

in inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D1/76) · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC22F1/02
Official titlein inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D1/76)
Display labelin inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D1/76)
Total patents256

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
201512
201615
201714
201827
201923
202027
202122
202228
202333
202423
202526
20266

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 C22F1/02?
CPC C22F1/02 is the Cooperative Patent Classification code for “in inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D1/76).”
How many patents are filed under CPC C22F1/02 (in inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D1/76))?
Our database includes 256 publications tagged with this CPC code.
Is patent activity under CPC C22F1/02 growing?
Publication counts under this code: 23 in 2024 vs 26 in 2025 (latest complete years).