PatentsDB

Friction welding

Friction welding · 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 codeB65B13/322
Official title{Friction welding}
Display labelFriction welding
Total patents53

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
20153
20165
20171
20184
20194
20204
20214
20225
202311
20244
20258

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 B65B13/322?
CPC B65B13/322 is the Cooperative Patent Classification code for “Friction welding.”
How many patents are filed under CPC B65B13/322 (Friction welding)?
Our database includes 53 publications tagged with this CPC code.
Is patent activity under CPC B65B13/322 growing?
Publication counts under this code: 4 in 2024 vs 8 in 2025 (latest complete years).