Wire forming apparatus for electric machine winding
US-11456652-B2 · Sep 27, 2022 · US
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Making flat springs, e.g. sinus springs
Making flat springs, e.g. sinus springs · 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 | B21F35/04 |
| Official title | Making flat springs, e.g. sinus springs |
| Display label | Making flat springs, e.g. sinus springs |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wire Forming Apparatus for Electric Machine Winding
US-2021194339-A1 · Jun 24, 2021 · US
Wire forming apparatus for electric machine winding
US-10958142-B2 · Mar 23, 2021 · US
Method for manufacturing a balance spring for a timepiece movement
US-2019196406-A1 · Jun 27, 2019 · US
Feedback-based system for bending wire and forming springs
US-10239111-B2 · Mar 26, 2019 · US
Wire forming apparatus for electric machine winding
US-2018301964-A1 · Oct 18, 2018 · US
Wire forming apparatus for electric machine winding
US-10038358-B2 · Jul 31, 2018 · US
Feedback-based system for bending wire and forming springs
US-2018161849-A1 · Jun 14, 2018 · US
Sinuous spring for a furniture item
US-9687905-B2 · Jun 27, 2017 · US
Ring-shaped spring and method for manufacturing same
US-9593731-B2 · Mar 14, 2017 · US
Sinuous spring for a furniture item
US-2016059299-A1 · Mar 3, 2016 · US
Wire forming apparatus for electric machine winding
US-2016052041-A1 · Feb 25, 2016 · US