for curved planar seams

for curved planar seams · 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 codeB23K9/028
Official titlefor curved planar seams
Display labelfor curved planar seams
Total patents93

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
20158
20169
20177
20188
201913
202010
20219
202210
20238
20244
20257

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 B23K9/028?
CPC B23K9/028 is the Cooperative Patent Classification code for “for curved planar seams.”
How many patents are filed under CPC B23K9/028 (for curved planar seams)?
Our database includes 93 publications tagged with this CPC code.
Is patent activity under CPC B23K9/028 growing?
Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).