Chemistry & Metallurgy

Chemistry & Metallurgy · 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 codeC09J2201/28
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents104

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
201516
201611
201723
201816
201923
202015

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 C09J2201/28?
CPC C09J2201/28 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C09J2201/28 (Chemistry & Metallurgy)?
Our database includes 104 publications tagged with this CPC code.
Is patent activity under CPC C09J2201/28 growing?
Publication counts under this code: 23 in 2019 vs 15 in 2020 (latest complete years).