Cellulose ether-esters

Cellulose ether-esters · 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 codeC08L1/32
Official titleCellulose ether-esters
Display labelCellulose ether-esters
Total patents96

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
20157
20164
20178
201820
201915
202010
20218
20226
20235
20244
20259

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 C08L1/32?
CPC C08L1/32 is the Cooperative Patent Classification code for “Cellulose ether-esters.”
How many patents are filed under CPC C08L1/32 (Cellulose ether-esters)?
Our database includes 96 publications tagged with this CPC code.
Is patent activity under CPC C08L1/32 growing?
Publication counts under this code: 4 in 2024 vs 9 in 2025 (latest complete years).