PatentsDB

Manufacture of stainless steel

Manufacture of stainless steel · 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 codeC21C5/005
Official title{Manufacture of stainless steel}
Display labelManufacture of stainless steel
Total patents39

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20152
20161
20172
20181
20191
20201
20212
20224
202313
20244
20257
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 C21C5/005?
CPC C21C5/005 is the Cooperative Patent Classification code for “Manufacture of stainless steel.”
How many patents are filed under CPC C21C5/005 (Manufacture of stainless steel)?
Our database includes 39 publications tagged with this CPC code.
Is patent activity under CPC C21C5/005 growing?
Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).