Welding apparatus and method
US-12491573-B2 · Dec 9, 2025 · US
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Welding of pipe panels
Welding of pipe panels · 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 | B23K9/0052 |
| Official title | {Welding of pipe panels} |
| Display label | Welding of pipe panels |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Submerged arc welded joint
US-2024051070-A1 · Feb 15, 2024 · US
Systems and methods for automated root pass welding
US-11766732-B2 · Sep 26, 2023 · US
Pipe connection assembly of heat exchanger
US-2023141369-A1 · May 11, 2023 · US
System, method and apparatus for welding tubes
US-11554437-B2 · Jan 17, 2023 · US
Welding apparatus and method
US-2022266369-A1 · Aug 25, 2022 · US
Method for improving fatigue strength
US-10906112-B2 · Feb 2, 2021 · US
System, method and apparatus for welding tubes
US-2020290144-A1 · Sep 17, 2020 · US
Systems and methods for automated root pass welding
US-2020230732-A1 · Jul 23, 2020 · US
System, method and apparatus for welding tubes
US-10702941-B2 · Jul 7, 2020 · US
Systems and methods for automated root pass welding
US-10610946-B2 · Apr 7, 2020 · US
Method for producing membrane wall, pipe bending device for manufacturing transfer duct and method for manufacturing transfer duct using same
US-10442039-B2 · Oct 15, 2019 · US
Welding process, welding system, and welded article
US-10328513-B2 · Jun 25, 2019 · US
Welding and other operations during J-lay pipelaying
US-10279412-B2 · May 7, 2019 · US
System, method and apparatus for welding tubes
US-2018243850-A1 · Aug 30, 2018 · US
Method for improving fatigue strength
US-2017239744-A1 · Aug 24, 2017 · US
Method for welding thin-walled tubes by means of peak temperature temper welding
US-9737948-B2 · Aug 22, 2017 · US
Systems and methods for automated root pass welding
US-2017157693-A1 · Jun 8, 2017 · US
Device and method for measuring the oxygen content in welding processes
US-2016003738-A1 · Jan 7, 2016 · US
Nuclear power plant construction preparation unit, nuclear power plant construction system, and nuclear power plant construction method
US-9205507-B2 · Dec 8, 2015 · US