Homopolymers or copolymers of alkyl-substituted styrenes

Homopolymers or copolymers of alkyl-substituted styrenes · 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 codeC09D125/16
Official titleHomopolymers or copolymers of alkyl-substituted styrenes
Display labelHomopolymers or copolymers of alkyl-substituted styrenes
Total patents85

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20159
20166
20179
20184
201913
20209
202113
20227
20234
20246
20255

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 C09D125/16?
CPC C09D125/16 is the Cooperative Patent Classification code for “Homopolymers or copolymers of alkyl-substituted styrenes.”
How many patents are filed under CPC C09D125/16 (Homopolymers or copolymers of alkyl-substituted styrenes)?
Our database includes 85 publications tagged with this CPC code.
Is patent activity under CPC C09D125/16 growing?
Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).