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 codeC08L77/02
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents1,669

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
2015136
2016176
2017128
2018154
2019170
2020166
2021155
2022180
2023143
2024137
2025104
202620

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C08L77/02?
CPC C08L77/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C08L77/02 (Chemistry & Metallurgy)?
Our database includes 1,669 publications tagged with this CPC code.
Is patent activity under CPC C08L77/02 growing?
Publication counts under this code: 137 in 2024 vs 104 in 2025 (latest complete years).