After-treatment maintaining the porosity (B22F3/114 takes precedence)

After-treatment maintaining the porosity (B22F3/114 takes precedence) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB22F3/1146
Official title{After-treatment maintaining the porosity (B22F3/114 takes precedence)}
Display labelAfter-treatment maintaining the porosity (B22F3/114 takes precedence)
Total patents72

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
20156
20166
20176
20185
20196
20203
202110
202210
20238
20243
20256
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 B22F3/1146?
CPC B22F3/1146 is the Cooperative Patent Classification code for “After-treatment maintaining the porosity (B22F3/114 takes precedence).”
How many patents are filed under CPC B22F3/1146 (After-treatment maintaining the porosity (B22F3/114 takes precedence))?
Our database includes 72 publications tagged with this CPC code.
Is patent activity under CPC B22F3/1146 growing?
Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).