Adjustable width blanking die apparatuses
US-2020406331-A1 · Dec 31, 2020 · US
Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00)
Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00) · 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 | B21D28/14 |
| Official title | Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00) |
| Display label | Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00) |
| Total patents | 146 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 11 |
| 2018 | 17 |
| 2019 | 14 |
| 2020 | 16 |
| 2021 | 22 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 15 |
| 2025 | 14 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Machining apparatus
US-10843249-B2 · Nov 24, 2020 · US
Processing apparatus, method for manufacturing molded product, and method for manufacturing spark plug electrode
US-10847952-B2 · Nov 24, 2020 · US
Method of manufacturing rolling bearing ring
US-10730098-B2 · Aug 4, 2020 · US
Method and device for producing shaped sheet-metal components by means of preformed components
US-2020230688-A1 · Jul 23, 2020 · US
Blank, formed article, die assembly, and method for producing blank
US-2020230682-A1 · Jul 23, 2020 · US
Clamping mechanism
US-2020188984-A1 · Jun 18, 2020 · US
Forged wheel trimming die
US-10569322-B2 · Feb 25, 2020 · US
3d pattern cutting machine for lithium metal electrode
US-2020058931-A1 · Feb 20, 2020 · US
Methods for die trimming hot stamped parts and parts formed therefrom
US-2019388948-A1 · Dec 26, 2019 · US
Fine blanking cam die
US-10456821-B2 · Oct 29, 2019 · US
Machining planar workpieces
US-2019299272-A1 · Oct 3, 2019 · US
Metal sheet molding method
US-2019299271-A1 · Oct 3, 2019 · US
Blanking die apparatus
US-10391539-B2 · Aug 27, 2019 · US
Multiple stroke slotting of planar workpieces
US-2019217369-A1 · Jul 18, 2019 · US
Component forming machine with jammed component mitigation
US-2019201963-A1 · Jul 4, 2019 · US
Manufacturing method and manufacturing device of sheared components
US-10335846-B2 · Jul 2, 2019 · US
Cutting device and sheet material manufacturing method
US-2019176206-A1 · Jun 13, 2019 · US
Manufacturing device for laminated iron core
US-2019126339-A1 · May 2, 2019 · US
Die apparatus and method for blanking thin plate
US-10252318-B2 · Apr 9, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D28/14?
- CPC B21D28/14 is the Cooperative Patent Classification code for “Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00).”
- How many patents are filed under CPC B21D28/14 (Dies (ejecting or stripping-off devices arranged in punching machines or tools B21D45/00))?
- Our database includes 146 publications tagged with this CPC code.
- Is patent activity under CPC B21D28/14 growing?
- Publication counts under this code: 15 in 2024 vs 14 in 2025 (latest complete years).