involving an oxidation, reduction or reaction step

involving an oxidation, reduction or reaction step · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB22F3/1143
Official title{involving an oxidation, reduction or reaction step}
Display labelinvolving an oxidation, reduction or reaction step
Total patents79

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20152
20163
20177
20187
201911
202015
202111
20225
20236
20245
20256
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 B22F3/1143?
CPC B22F3/1143 is the Cooperative Patent Classification code for “involving an oxidation, reduction or reaction step.”
How many patents are filed under CPC B22F3/1143 (involving an oxidation, reduction or reaction step)?
Our database includes 79 publications tagged with this CPC code.
Is patent activity under CPC B22F3/1143 growing?
Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).