Hydraulic drawing cushion of a drawing press and method of operating the hydraulic cushion
US-10507506-B2 · Dec 17, 2019 · US
Die-cushions
Die-cushions · 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 | B21D24/02 |
| Official title | Die-cushions |
| Display label | Die-cushions |
| Total patents | 113 |
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 | 6 |
| 2016 | 14 |
| 2017 | 13 |
| 2018 | 11 |
| 2019 | 18 |
| 2020 | 16 |
| 2021 | 10 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Double-blank detecting apparatus for press machine and die protecting apparatus for press machine
US-2019358692-A1 · Nov 28, 2019 · US
Draw die and binder lock
US-10486216-B2 · Nov 26, 2019 · US
Apparatus and method for checking inclination of cushion pad
US-10441988-B2 · Oct 15, 2019 · US
Molded material production method and molded material
US-2019283101-A1 · Sep 19, 2019 · US
Cushion pin pressure equalizing device, die cushion device with cushion pin pressure equalizing function and cushion pin pressure equalizing method
US-2019270129-A1 · Sep 5, 2019 · US
Press system
US-2019232353-A1 · Aug 1, 2019 · US
Die cushion apparatus of press machine and die cushion controlling method
US-10363594-B2 · Jul 30, 2019 · US
Press-forming tool with tolerance compensation
US-10322443-B2 · Jun 18, 2019 · US
Cushion pin device for press
US-2019168279-A1 · Jun 6, 2019 · US
Die cushion device of press machine
US-10259031-B2 · Apr 16, 2019 · US
Hat-shaped cross-section component manufacturing apparatus
US-10245634-B2 · Apr 2, 2019 · US
Cushion pin device for press
US-10239107-B2 · Mar 26, 2019 · US
Press molding method and press molding apparatus
US-2019084026-A1 · Mar 21, 2019 · US
Wrinkle generation detecting device, die cushion device and die protection device, and wrinkle generation detecting method, die cushion force automatic setting method and die protecting method
US-2019076905-A1 · Mar 14, 2019 · US
Servo motor controller
US-2019001602-A1 · Jan 3, 2019 · US
Double blank detecting device for press machine and die protecting device for press machine
US-2018354219-A1 · Dec 13, 2018 · US
Sheet metal forming method and apparatus
US-10150152-B2 · Dec 11, 2018 · US
Die cushion device and control method of die cushion device
US-10124390-B2 · Nov 13, 2018 · US
Shock absorber and press apparatus using the same
US-2018290196-A1 · Oct 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D24/02?
- CPC B21D24/02 is the Cooperative Patent Classification code for “Die-cushions.”
- How many patents are filed under CPC B21D24/02 (Die-cushions)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC B21D24/02 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).