Al plated welded pipe for hardening use and al plated hollow member and method for producing same
US-12281375-B2 · Apr 22, 2025 · US
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for tubes
for tubes · 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 | B23K13/046 |
| Official title | {for tubes} |
| Display label | for tubes |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Al plated welded pipe for hardening use and al plated hollow member and method for producing same
US-2023416888-A1 · Dec 28, 2023 · US
Al plated welded pipe for hardening use and Al plated hollow member and method for producing same
US-11807924-B2 · Nov 7, 2023 · US
Refrigerator and method for manufacturing the same
US-2023288131-A1 · Sep 14, 2023 · US
Al plated welded pipe for hardening use and al plated hollow member and method for producing same
US-2020347489-A1 · Nov 5, 2020 · US
Apparatus, method, and program for monitoring operation of high frequency resistance welding and induction heating welding of electric resistance welded steel pipe
US-2020038929-A1 · Feb 6, 2020 · US
Electric resistance welded stainless clad steel pipe and method of manufacturing the same
US-2018243809-A1 · Aug 30, 2018 · US
Welded steel pipe joined with high-energy-density beam and method for producing the same
US-9677692-B2 · Jun 13, 2017 · US
Operation management device, operation management method, and operation management program for high-frequency resistance welding and induction welding
US-9199291-B2 · Dec 1, 2015 · US
Welded steel pipe joined with high-energy-density beam and method for producing the same
US-2015204464-A1 · Jul 23, 2015 · US
Method for producing a steel pipe using a high energy density beam
US-8993920-B2 · Mar 31, 2015 · US