Dual walled titanium tubing and methods of manufacturing the tubing
US-9810348-B2 · Nov 7, 2017 · US
Making tubes by soldering or welding
Making tubes by soldering or welding · 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 | B23K31/027 |
| Official title | {Making tubes by soldering or welding} |
| Display label | Making tubes by soldering or welding |
| Total patents | 224 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 26 |
| 2017 | 22 |
| 2018 | 17 |
| 2019 | 22 |
| 2020 | 21 |
| 2021 | 24 |
| 2022 | 16 |
| 2023 | 16 |
| 2024 | 21 |
| 2025 | 16 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing a tube from metal
US-2017312854-A1 · Nov 2, 2017 · US
Homopolor generator pulsed welding generator subsystems
US-2017304926-A1 · Oct 26, 2017 · US
System and method for venting air in a welding system
US-2017304927-A1 · Oct 26, 2017 · US
Axle Suspension System Having an Axle Wrap and Method of Manufacture
US-2017239988-A1 · Aug 24, 2017 · US
Transportation system
US-9718630-B2 · Aug 1, 2017 · US
Site conditions thick-wall P92 pipe local heat treatment method
US-9663841-B2 · May 30, 2017 · US
High strength steel plate having low yield ratio excellent in terms of strain ageing resistance, method of manufacturing the same and high strength welded steel pipe made of the same
US-9657868-B2 · May 23, 2017 · US
Transportation system
US-9604798-B2 · Mar 28, 2017 · US
Connection method for a braided hose
US-9593785-B2 · Mar 14, 2017 · US
Stabilizer bar and process of producing a stabilizer bar
US-2017066299-A1 · Mar 9, 2017 · US
Transportation system
US-9517901-B2 · Dec 13, 2016 · US
Transportation system
US-9511959-B2 · Dec 6, 2016 · US
Dual Walled Titanium Tubing and Methods of Manufacturing the Tubing
US-2016327188-A1 · Nov 10, 2016 · US
Steel pipe
US-2016319404-A1 · Nov 3, 2016 · US
Heat treated heavy weight drill pipe
US-2016305194-A1 · Oct 20, 2016 · US
Method of forming a tubular member
US-9452464-B2 · Sep 27, 2016 · US
Dual walled titanium tubing and methods of manufacturing the tubing
US-9446483-B2 · Sep 20, 2016 · US
Container coating compositions
US-2016264811-A1 · Sep 15, 2016 · US
Method for producing a hot-formed and quench-hardened motor vehicle component formed by internal high-pressure forming
US-2016258035-A1 · Sep 8, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K31/027?
- CPC B23K31/027 is the Cooperative Patent Classification code for “Making tubes by soldering or welding.”
- How many patents are filed under CPC B23K31/027 (Making tubes by soldering or welding)?
- Our database includes 224 publications tagged with this CPC code.
- Is patent activity under CPC B23K31/027 growing?
- Publication counts under this code: 21 in 2024 vs 16 in 2025 (latest complete years).