Polyester-carbonates

Polyester-carbonates · 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 codeC08L69/005
Official title{Polyester-carbonates}
Display labelPolyester-carbonates
Total patents363

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
201528
201643
201749
201835
201936
202037
202138
202221
202322
202427
202526
20261

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 C08L69/005?
CPC C08L69/005 is the Cooperative Patent Classification code for “Polyester-carbonates.”
How many patents are filed under CPC C08L69/005 (Polyester-carbonates)?
Our database includes 363 publications tagged with this CPC code.
Is patent activity under CPC C08L69/005 growing?
Publication counts under this code: 27 in 2024 vs 26 in 2025 (latest complete years).