Preliminary treatment

Preliminary treatment · 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 codeB23K9/235
Official titlePreliminary treatment
Display labelPreliminary treatment
Total patents250

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
201514
201616
201724
201819
201935
202024
202129
202230
202319
202417
202522
20261

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 B23K9/235?
CPC B23K9/235 is the Cooperative Patent Classification code for “Preliminary treatment.”
How many patents are filed under CPC B23K9/235 (Preliminary treatment)?
Our database includes 250 publications tagged with this CPC code.
Is patent activity under CPC B23K9/235 growing?
Publication counts under this code: 17 in 2024 vs 22 in 2025 (latest complete years).