comprising an after-treatment

comprising an 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 codeC22C1/1094
Official title{comprising an after-treatment}
Display labelcomprising an after-treatment
Total patents52

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
20157
20166
20177
20184
20196
20202
20214
20225
20236
20243
20252

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 C22C1/1094?
CPC C22C1/1094 is the Cooperative Patent Classification code for “comprising an after-treatment.”
How many patents are filed under CPC C22C1/1094 (comprising an after-treatment)?
Our database includes 52 publications tagged with this CPC code.
Is patent activity under CPC C22C1/1094 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).