Homopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence)

Homopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence) · 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 codeC09D135/02
Official titleHomopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence)
Display labelHomopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence)
Total patents751

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
201553
201650
201788
201878
201978
202083
202159
202251
202364
202472
202565
202610

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 C09D135/02?
CPC C09D135/02 is the Cooperative Patent Classification code for “Homopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence).”
How many patents are filed under CPC C09D135/02 (Homopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence))?
Our database includes 751 publications tagged with this CPC code.
Is patent activity under CPC C09D135/02 growing?
Publication counts under this code: 72 in 2024 vs 65 in 2025 (latest complete years).