Process for blanking of metal parts
US-11135635-B2 · Oct 5, 2021 · US
Shoulder or burr prevention {, e.g. fine-blanking}
Shoulder or burr prevention {, e.g. fine-blanking} · 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 | B21D28/16 |
| Official title | Shoulder or burr prevention {, e.g. fine-blanking} |
| Display label | Shoulder or burr prevention {, e.g. fine-blanking} |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 5 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 11 |
| 2021 | 5 |
| 2022 | 11 |
| 2023 | 8 |
| 2024 | 6 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Trimming die for casting of front steering knuckle in double-wishbone suspension
US-11123786-B2 · Sep 21, 2021 · US
Hot-formed metal sheet and method of producing an opening in such a metal sheet
US-11027325-B2 · Jun 8, 2021 · US
Device for manufacturing laminated iron core and method for manufacturing laminated iron core
US-2021060635-A1 · Mar 4, 2021 · US
Metal element for continuously variable transmission and method of producing the same
US-10935102-B2 · Mar 2, 2021 · US
Trimming die for casting of front steering knuckle in double-wishbone suspension
US-2020406332-A1 · Dec 31, 2020 · US
Die cutting insert and method for cutting sheet metals
US-2020398453-A1 · Dec 24, 2020 · US
Stamping apparatus and stamping method
US-2020290107-A1 · Sep 17, 2020 · US
Stamping method and stamping apparatus
US-2020290106-A1 · Sep 17, 2020 · US
Blank, formed article, die assembly, and method for producing blank
US-2020230682-A1 · Jul 23, 2020 · US
Mobile terminal, power interface, and method for manufacturing power interface
US-10720743-B2 · Jul 21, 2020 · US
Shearing method
US-10639699-B2 · May 5, 2020 · US
Shearing method
US-10639698-B2 · May 5, 2020 · US
Blank, formed article, die assembly, and method for producing blank
US-10625325-B2 · Apr 21, 2020 · US
Burring method and burring apparatus
US-10562091-B2 · Feb 18, 2020 · US
Method for producing a component comprising a row of teeth for adjusting a motor vehicle seat
US-2020009640-A1 · Jan 9, 2020 · US
Forming method of disk-shaped member
US-2019358694-A1 · Nov 28, 2019 · US
Stamping method and stamping apparatus
US-10478886-B2 · Nov 19, 2019 · US
Fine blanking cam die
US-10456821-B2 · Oct 29, 2019 · US
Mobile terminal, power interface, and method for manufacturing power interface
US-2019296510-A1 · Sep 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D28/16?
- CPC B21D28/16 is the Cooperative Patent Classification code for “Shoulder or burr prevention {, e.g. fine-blanking}.”
- How many patents are filed under CPC B21D28/16 (Shoulder or burr prevention {, e.g. fine-blanking})?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC B21D28/16 growing?
- Publication counts under this code: 6 in 2024 vs 9 in 2025 (latest complete years).