Polycarboxylic acids containing no nitrogen or sulfur

Polycarboxylic acids containing no nitrogen or sulfur · 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 codeC11D1/08
Official titlePolycarboxylic acids containing no nitrogen or sulfur
Display labelPolycarboxylic acids containing no nitrogen or sulfur
Total patents41

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20153
20161
20171
20181
20194
20203
20213
20226
20238
20246
20255

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 C11D1/08?
CPC C11D1/08 is the Cooperative Patent Classification code for “Polycarboxylic acids containing no nitrogen or sulfur.”
How many patents are filed under CPC C11D1/08 (Polycarboxylic acids containing no nitrogen or sulfur)?
Our database includes 41 publications tagged with this CPC code.
Is patent activity under CPC C11D1/08 growing?
Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).