High-heat-input combined welding method for thick-walled high-strength steel
US-12440927-B1 · Oct 14, 2025 · US
with backing means disposed under the seam
with backing means disposed under the seam · 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 | B23K9/035 |
| Official title | with backing means disposed under the seam |
| Display label | with backing means disposed under the seam |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 7 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Extruded weld joint backing insert
US-12172245-B2 · Dec 24, 2024 · US
Gas-shielded arc welding method, welded joint, and method for producing welded joint
US-2024307990-A1 · Sep 19, 2024 · US
Extruded weld joint backing insert
US-2024165728-A1 · May 23, 2024 · US
Gas-shielded arc welding method, welded joint, and welded joint production method
US-2024149365-A1 · May 9, 2024 · US
Arc Welding Device for Secondary Battery, and Welding Method Using the Same
US-2024139850-A1 · May 2, 2024 · US
Method for the production of tailor welded blanks (TWBs)
US-11745246-B2 · Sep 5, 2023 · US
GTAW system and welding method for thick plates with an ultra-narrow gap
US-11571763-B2 · Feb 7, 2023 · US
Welding support block
US-11471968-B2 · Oct 18, 2022 · US
Method of making a steel Yankee cylinder
US-11103947-B2 · Aug 31, 2021 · US
Thick, long seam welding system and method for distortion control and non post weld heat treatment of pipeline hot tap fittings
US-11045909-B2 · Jun 29, 2021 · US
One-side submerged arc welding method and one-side submerged arc welding device
US-2021046573-A1 · Feb 18, 2021 · US
One-side submerged arc welding method and one-side submerged arc welding device
US-2021039187-A1 · Feb 11, 2021 · US
Method of welding conduit components of a heat exchanger and backing device therefore
US-10828712-B2 · Nov 10, 2020 · US
Pipe joint, fluid control device, fluid control unit, semiconductor fabrication apparatus and method of forming pipe joint
US-10737345-B2 · Aug 11, 2020 · US
GTAW System and Welding Method for thick plates with an Ultra-narrow Gap
US-2020238417-A1 · Jul 30, 2020 · US
Welding support block
US-2020122259-A1 · Apr 23, 2020 · US
Method of and apparatus for controlling a weld penetration profile with application of shielding gas in an inner region of a workpiece
US-10589372-B2 · Mar 17, 2020 · US
Clip for retaining components for welding
US-10576569-B2 · Mar 3, 2020 · US
Method of welding conduit components of a heat exchanger and backing device therefore
US-2019366464-A1 · Dec 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K9/035?
- CPC B23K9/035 is the Cooperative Patent Classification code for “with backing means disposed under the seam.”
- How many patents are filed under CPC B23K9/035 (with backing means disposed under the seam)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC B23K9/035 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).