Dual wire welding system and method
US-RE50752-E · Jan 20, 2026 · US
Devices for the automatic supply of at least two electrodes one after the other
Devices for the automatic supply of at least two electrodes one after the other · 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 | B23K9/121 |
| Official title | {Devices for the automatic supply of at least two electrodes one after the other} |
| Display label | Devices for the automatic supply of at least two electrodes one after the other |
| Total patents | 51 |
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 | 5 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 11 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dual wire welding system and method
US-RE50726-E · Jan 6, 2026 · US
Methods and System for Multiple Wire Feed Control For Wire-Arc Additive Manufacturing
US-2025108448-A1 · Apr 3, 2025 · US
Multiple welding method
US-12145227-B2 · Nov 19, 2024 · US
Dual wire welding or additive manufacturing system and method
US-2024207962-A1 · Jun 27, 2024 · US
Dual wire welding or additive manufacturing system and method
US-11964346-B2 · Apr 23, 2024 · US
Welding method
US-2023286076-A1 · Sep 14, 2023 · US
Dual wire welding or additive manufacturing system and method
US-11504788-B2 · Nov 22, 2022 · US
Wire management for a welding system
US-11413697-B2 · Aug 16, 2022 · US
Articulated welding robot
US-11400538-B2 · Aug 2, 2022 · US
Arc welding method and arc welding arrangement with first and second electrodes
US-11389889-B2 · Jul 19, 2022 · US
Multiple welding method
US-2022161350-A1 · May 26, 2022 · US
Tracking welding torches using retractable cords
US-2022126404-A1 · Apr 28, 2022 · US
Dual wire welding or additive manufacturing system
US-11285557-B2 · Mar 29, 2022 · US
Method and system for submerged arc welding
US-11135670-B2 · Oct 5, 2021 · US
Arc welding head and a welding arrangement
US-2021245290-A1 · Aug 12, 2021 · US
Tandem arc welding head and a welding arrangement for overlapping arcs to a cold wire electrode
US-10994362-B2 · May 4, 2021 · US
Dual wire welding or additive manufacturing system and method
US-2020398364-A1 · Dec 24, 2020 · US
Dual wire welding or additive manufacturing system and method
US-10792752-B2 · Oct 6, 2020 · US
Dual wire welding or additive manufacturing system and method
US-10773335-B2 · Sep 15, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K9/121?
- CPC B23K9/121 is the Cooperative Patent Classification code for “Devices for the automatic supply of at least two electrodes one after the other.”
- How many patents are filed under CPC B23K9/121 (Devices for the automatic supply of at least two electrodes one after the other)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC B23K9/121 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).