Hairpin coil forming apparatus
US-2026097430-A1 · Apr 9, 2026 · US
Coiling wire into particular forms
Coiling wire into particular forms · 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 | B21F3/00 |
| Official title | Coiling wire into particular forms |
| Display label | Coiling wire into particular forms |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 6 |
| 2020 | 4 |
| 2022 | 2 |
| 2023 | 8 |
| 2024 | 2 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coil supply device for hairpin-type stator coil forming system
US-2026084203-A1 · Mar 26, 2026 · US
Winding device
US-2025323556-A1 · Oct 16, 2025 · US
Method and machine to manufacture one or more coils around respective articles
US-12390850-B2 · Aug 19, 2025 · US
Winding device and motor
US-12395052-B2 · Aug 19, 2025 · US
Method and linear device for linear winding of a rectangular wire
US-2025229317-A1 · Jul 17, 2025 · US
Transfer device for maintaining an electrical or optical connection
US-12304772-B2 · May 20, 2025 · US
Wire rod and part, having improved delayed fracture resistance, for use in bolt and method for manufacturing same
US-2024052454-A1 · Feb 15, 2024 · US
Embolic devices and methods of manufacturing same
US-2024032938-A1 · Feb 1, 2024 · US
Embolic devices and methods of manufacturing same
US-11819217-B2 · Nov 21, 2023 · US
Stator assembly apparatus and stator assembly method
US-2023170773-A1 · Jun 1, 2023 · US
Embolization coil and method for producing embolization coil
US-11654215-B2 · May 23, 2023 · US
Coil insertion guide device
US-2023155464-A1 · May 18, 2023 · US
Conductor forming device and method of manufacturing wave winding coil
US-2023155461-A1 · May 18, 2023 · US
Method and Machine to Manufacture One or More Coils Around Respective Articles
US-2023150011-A1 · May 18, 2023 · US
Winding device and motor
US-2023104723-A1 · Apr 6, 2023 · US
Automated wire processing system and methods
US-11569009-B2 · Jan 31, 2023 · US
Coiling head apparatus and system
US-11364528-B2 · Jun 21, 2022 · US
Transfer device for maintaining an electrical or optical connection
US-2022024714-A1 · Jan 27, 2022 · US
Embolic devices and methods of manufacturing same
US-2020367901-A1 · Nov 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21F3/00?
- CPC B21F3/00 is the Cooperative Patent Classification code for “Coiling wire into particular forms.”
- How many patents are filed under CPC B21F3/00 (Coiling wire into particular forms)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC B21F3/00 growing?
- Publication counts under this code: 2 in 2024 vs 5 in 2025 (latest complete years).