Chemical bonding method and joined structure
US-12451461-B2 · Oct 21, 2025 · US
Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18)
Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18) · 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 | B23K20/14 |
| Official title | Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18) |
| Display label | Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18) |
| Total patents | 42 |
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 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 3 |
| 2019 | 4 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal jointed body, semiconductor device, wave guide tube, and method for joining members to be joined
US-12412861-B2 · Sep 9, 2025 · US
Nickel-carbon and nickel-cobalt-carbon brazes and brazing processes for joining ceramics and metals and semiconductor processing and industrial equipment using same
US-12397379-B2 · Aug 26, 2025 · US
Systems, devices, and methods for surface preparation for bond enhancement in additive deposition processes
US-2025153267-A1 · May 15, 2025 · US
Multi-Zone Blade Fabrication
US-2025129721-A1 · Apr 24, 2025 · US
Multi-zone blade fabrication
US-12173615-B2 · Dec 24, 2024 · US
Nickel-Carbon And Nickel-Cobalt-Carbon Brazes And Brazing Processes For Joining Ceramics And Metals And Semiconductor Processing And Industrial Equipment Using Same
US-2024278359-A1 · Aug 22, 2024 · US
Method for manufacturing metal matrix composite parts
US-12017297-B2 · Jun 25, 2024 · US
Methods for producing metal flow reactor modules with integrated temperature control and modules produced
US-2024157324-A1 · May 16, 2024 · US
Nickel-Carbon And Nickel-Cobalt-Carbon Brazes And Brazing Processes For Joining Ceramics And Metals And Semiconductor Processing And Industrial Equipment Using Same
US-2023321766-A1 · Oct 12, 2023 · US
Method of bonding metallic components to form machining preform
US-2023201950-A1 · Jun 29, 2023 · US
Method for manufacturing metal matrix composite parts
US-2023191528-A1 · Jun 22, 2023 · US
Nickel-carbon and nickel-cobalt-carbon brazes and brazing processes for joining ceramics and metals and semiconductor processing and industrial equipment using same
US-11666993-B2 · Jun 6, 2023 · US
Metal jointed body, semiconductor device, wave guide tube, and method for joining members to be joined
US-2023054798-A1 · Feb 23, 2023 · US
Chemical bonding method and joined structure
US-11450643-B2 · Sep 20, 2022 · US
Chemical bonding method and joined structure
US-2022199569-A1 · Jun 23, 2022 · US
Chemical bonding method and joined structure
US-2022157770-A1 · May 19, 2022 · US
Friction stir welding for ceramic applications
US-2021354231-A1 · Nov 18, 2021 · US
Multi-Zone Blade Fabrication
US-2021254474-A1 · Aug 19, 2021 · US
Electric resistance welded clad steel pipe or tube and method of producing same
US-11079045-B2 · Aug 3, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K20/14?
- CPC B23K20/14 is the Cooperative Patent Classification code for “Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18).”
- How many patents are filed under CPC B23K20/14 (Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18))?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC B23K20/14 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).