Stamping press forming of outer diameter helical splines
US-11697149-B2 · Jul 11, 2023 · US
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helical
helical · 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 | B21K1/305 |
| Official title | {helical} |
| Display label | helical |
| Total patents | 19 |
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 | 1 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stamping press forming of outer diameter helical splines
US-2022339692-A1 · Oct 27, 2022 · US
Method for the forming manufacturing of a gear toothing and tool device for the calibration of the gear cutting inlet and/or gear cutting outlet
US-11426785-B2 · Aug 30, 2022 · US
Net forged spiral bevel gear
US-11318569-B2 · May 3, 2022 · US
Method and apparatus for forging gear
US-11305334-B2 · Apr 19, 2022 · US
Crowning forming method and crowning forming apparatus
US-11135666-B2 · Oct 5, 2021 · US
Net forged spiral bevel gear
US-2021154778-A1 · May 27, 2021 · US
Net forged spiral bevel gear
US-10926363-B2 · Feb 23, 2021 · US
Method for the Forming Manufacturing of a Gear Toothing and Tool Device for the Calibration of the Gear Cutting Inlet and/or Gear Cutting Outlet
US-2020261961-A1 · Aug 20, 2020 · US
Method and apparatus for forging gear
US-2020130046-A1 · Apr 30, 2020 · US
Ring gear, gear device and mold for manufacturing the ring gear
US-10480619-B2 · Nov 19, 2019 · US
Crowning forming method and crowning forming apparatus
US-2019193177-A1 · Jun 27, 2019 · US
Method and apparatus for forging gear
US-2019060980-A1 · Feb 28, 2019 · US
Ring gear, gear device and mold for manufacturing the ring gear
US-2018051777-A1 · Feb 22, 2018 · US
System and method of making a forged part
US-9724748-B2 · Aug 8, 2017 · US
Net forged spiral bevel gear
US-2016361784-A1 · Dec 15, 2016 · US
Spiral bevel gear forging apparatus
US-2016144422-A1 · May 26, 2016 · US
System and Method of Making a Forged Part
US-2016038994-A1 · Feb 11, 2016 · US
Gear mechanism and manufacturing method of gear mechanism
US-2015082930-A1 · Mar 26, 2015 · US