PatentsDB

Multi-stage processes {processes carried out in different vessels or furnaces}

Multi-stage processes {processes carried out in different vessels or furnaces} · 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 codeC21B13/14
Official titleMulti-stage processes {processes carried out in different vessels or furnaces}
Display labelMulti-stage processes {processes carried out in different vessels or furnaces}
Total patents61

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
201510
20166
20172
20184
20191
20202
20213
20223
202310
20248
20256
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 C21B13/14?
CPC C21B13/14 is the Cooperative Patent Classification code for “Multi-stage processes {processes carried out in different vessels or furnaces}.”
How many patents are filed under CPC C21B13/14 (Multi-stage processes {processes carried out in different vessels or furnaces})?
Our database includes 61 publications tagged with this CPC code.
Is patent activity under CPC C21B13/14 growing?
Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).