Hairpin coil flattening control system and method therefor
US-12589421-B2 · Mar 31, 2026 · US
Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L)
Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L) · 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 | B21F45/00 |
| Official title | Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L) |
| Display label | Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L) |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 8 |
| 2017 | 5 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal hydroforming method for manufacturing heat pipe wicks utilizing a hollow mandrel and sheath
US-2026042135-A1 · Feb 12, 2026 · US
Method of inserting a hairpin
US-12463512-B2 · Nov 4, 2025 · US
Internal hydroforming method for manufacturing heat pipe wicks utilizing a hollow mandrel and sheath
US-12447521-B2 · Oct 21, 2025 · US
Technologies for fiber nanotechnology
US-12350385-B2 · Jul 8, 2025 · US
Method of inserting a hairpin
US-2024128842-A1 · Apr 18, 2024 · US
Hairpin coil flattening control system and method therefor
US-2024091834-A1 · Mar 21, 2024 · US
System and method for forming a hairpin for motors
US-2024079938-A1 · Mar 7, 2024 · US
Method of inserting a hairpin
US-11881748-B2 · Jan 23, 2024 · US
System and method for forming a hairpin for motors
US-11848589-B2 · Dec 19, 2023 · US
Wire feeding and attaching system for camera lens suspensions
US-11769977-B2 · Sep 26, 2023 · US
Internal hydroforming method for manufacturing heat pipe wicks utilizing a hollow mandrel and sheath
US-2023226587-A1 · Jul 20, 2023 · US
Wire feeding and attaching system for camera lens suspensions
US-11682876-B2 · Jun 20, 2023 · US
Coil forming apparatus and coil forming method
US-2023141937-A1 · May 11, 2023 · US
Contact bending assembly for electrical connector assembling machine
US-11611187-B2 · Mar 21, 2023 · US
Contact bending assembly for electrical connector assembling machine
US-2023032253-A1 · Feb 2, 2023 · US
Technologies for fiber nanotechnology
US-2022401616-A1 · Dec 22, 2022 · US
Apparatus for Molding Hairpin and Method of Inserting Hairpin Using the Same
US-2022320977-A1 · Oct 6, 2022 · US
Bile duct stent and method of manufacturing the same
US-2022304796-A1 · Sep 29, 2022 · US
Apparatus for molding hairpin
US-11356004-B2 · Jun 7, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21F45/00?
- CPC B21F45/00 is the Cooperative Patent Classification code for “Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L).”
- How many patents are filed under CPC B21F45/00 (Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L))?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC B21F45/00 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).