to produce plates or strips for drawing, e.g. for deep-drawing

to produce plates or strips for drawing, e.g. for deep-drawing · 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 codeC21D8/04
Official titleto produce plates or strips for drawing, e.g. for deep-drawing
Display labelto produce plates or strips for drawing, e.g. for deep-drawing
Total patents319

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
201517
201615
201714
201829
201929
202030
202136
202241
202337
202423
202537
202611

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 C21D8/04?
CPC C21D8/04 is the Cooperative Patent Classification code for “to produce plates or strips for drawing, e.g. for deep-drawing.”
How many patents are filed under CPC C21D8/04 (to produce plates or strips for drawing, e.g. for deep-drawing)?
Our database includes 319 publications tagged with this CPC code.
Is patent activity under CPC C21D8/04 growing?
Publication counts under this code: 23 in 2024 vs 37 in 2025 (latest complete years).