Modification of polymers by chemical after-treatment

Modification of polymers by chemical after-treatment · 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 codeC08G85/004
Official title{Modification of polymers by chemical after-treatment}
Display labelModification of polymers by chemical after-treatment
Total patents72

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
20154
20162
20174
20187
201911
202011
202115
20225
20236
20245
20252

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 C08G85/004?
CPC C08G85/004 is the Cooperative Patent Classification code for “Modification of polymers by chemical after-treatment.”
How many patents are filed under CPC C08G85/004 (Modification of polymers by chemical after-treatment)?
Our database includes 72 publications tagged with this CPC code.
Is patent activity under CPC C08G85/004 growing?
Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).