Polyalkylene oxides

Polyalkylene oxides · 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 codeC09J171/02
Official titlePolyalkylene oxides
Display labelPolyalkylene oxides
Total patents273

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
201523
201623
201725
201837
201915
202030
202126
202224
202325
202425
202517
20263

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 C09J171/02?
CPC C09J171/02 is the Cooperative Patent Classification code for “Polyalkylene oxides.”
How many patents are filed under CPC C09J171/02 (Polyalkylene oxides)?
Our database includes 273 publications tagged with this CPC code.
Is patent activity under CPC C09J171/02 growing?
Publication counts under this code: 25 in 2024 vs 17 in 2025 (latest complete years).