Device for drawing tubular workpiece
US-9636727-B2 · May 2, 2017 · US
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Operations & Transport
Operations & Transport · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B21C9/005 |
| Official title | — |
| Display label | Operations & Transport (mapped technology topic) |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Drawing method of metallic tube and producing method of metallic tube using same
US-9120136-B2 · Sep 1, 2015 · US
Device and method for drawing metal tube
US-2015174631-A1 · Jun 25, 2015 · US
Lubricating oil composition for metal working
US-2015013410-A1 · Jan 15, 2015 · US