High-frequency transformers using solid wire for welding-type power supplies
US-12469637-B2 · Nov 11, 2025 · US
Welding transformers
Welding transformers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F38/085 |
| Official title | {Welding transformers} |
| Display label | Welding transformers |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low-leakage overmolded planar transformers for welding-type power supplies
US-2025182955-A1 · Jun 5, 2025 · US
Low-leakage planar transformers for welding-type power supplies
US-2025125080-A1 · Apr 17, 2025 · US
Welding transformer
US-2024387099-A1 · Nov 21, 2024 · US
Welding transformer
US-2024387097-A1 · Nov 21, 2024 · US
Device and method for carrying out a welding process
US-2024316676-A1 · Sep 26, 2024 · US
Welding current source
US-11660696-B2 · May 30, 2023 · US
Balanced plate rectifiers and welding-type power supplies including balanced plate rectifiers
US-11660697-B2 · May 30, 2023 · US
High-Frequency Transformers using Solid Wire for Welding-Type Power Supplies
US-2022044867-A1 · Feb 10, 2022 · US
High-frequency transformers using solid wire for welding-type power supplies
US-11239026-B2 · Feb 1, 2022 · US
Welding current source
US-2021283705-A1 · Sep 16, 2021 · US
Insulated winding wire transformer for welding-type power supplies
US-2021043374-A1 · Feb 11, 2021 · US
Balanced plate rectifiers and welding-type power supplies including balanced plate rectifiers
US-2020180061-A1 · Jun 11, 2020 · US
Converter circuit
US-10493557-B2 · Dec 3, 2019 · US
Method and Apparatus for Providing Auxiliary and Welding Type Power With Thermal Protection
US-2019358728-A1 · Nov 28, 2019 · US
Welding type power supply with transformer
US-10486257-B2 · Nov 26, 2019 · US
Method and apparatus for providing auxiliary and welding type power with thermal protection
US-10406623-B2 · Sep 10, 2019 · US
Method for producing a heavy-current transformer
US-10325720-B2 · Jun 18, 2019 · US
High-Frequency Transformers using Solid Wire for Welding-Type Power Supplies
US-2019103218-A1 · Apr 4, 2019 · US
Heavy-current transformer having a multi-point contacting, transformer element, contact plate and secondary winding, and method for producing such a heavy-current transformer
US-10141106-B2 · Nov 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F38/085?
- CPC H01F38/085 is the Cooperative Patent Classification code for “Welding transformers.”
- How many patents are filed under CPC H01F38/085 (Welding transformers)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC H01F38/085 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).