modified by chemical after-treatment

modified by chemical after-treatment · 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 codeC08L27/22
Official titlemodified by chemical after-treatment
Display labelmodified by chemical after-treatment
Total patents111

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
20159
20164
20178
20187
201911
202014
202111
202215
20236
202412
202514

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 C08L27/22?
CPC C08L27/22 is the Cooperative Patent Classification code for “modified by chemical after-treatment.”
How many patents are filed under CPC C08L27/22 (modified by chemical after-treatment)?
Our database includes 111 publications tagged with this CPC code.
Is patent activity under CPC C08L27/22 growing?
Publication counts under this code: 12 in 2024 vs 14 in 2025 (latest complete years).