Method for producing a sealed folded connection
US-11440077-B2 · Sep 13, 2022 · US
for panels, e.g. vehicle doors
for panels, e.g. vehicle doors · 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 | B21D39/021 |
| Official title | {for panels, e.g. vehicle doors} |
| Display label | for panels, e.g. vehicle doors |
| Total patents | 89 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 11 |
| 2017 | 15 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Structural member
US-2022281528-A1 · Sep 8, 2022 · US
Modular roller hemming system having an additive manufactured anvil
US-2022280993-A1 · Sep 8, 2022 · US
Flange forming device and method of forming a flange on a sheet metal part to reduce surface distortion
US-11358204-B2 · Jun 14, 2022 · US
Method for producing an overlapping connection, and body component for a vehicle
US-11358205-B2 · Jun 14, 2022 · US
Method for producing a multilayered heat shield
US-2022001439-A1 · Jan 6, 2022 · US
Panel hemming device and a method of hemming using the same
US-11097328-B2 · Aug 24, 2021 · US
Method for producing an overlapping connection, and body component for a vehicle
US-2021197245-A1 · Jul 1, 2021 · US
Automotive panel hem stabilizing assembly and method
US-2021146759-A1 · May 20, 2021 · US
Hemming head
US-10882095-B2 · Jan 5, 2021 · US
Roller hemming device and preliminary bending method using the device
US-2020338617-A1 · Oct 29, 2020 · US
Panel hemming device and a method of hemming using the same
US-2020180005-A1 · Jun 11, 2020 · US
Hemming structure for hybrid-type door
US-10654347-B2 · May 19, 2020 · US
Method for producing a sealed folded connection
US-2020055107-A1 · Feb 20, 2020 · US
Flange forming device and method of forming a flange on a sheet metal part to reduce surface distortion
US-2020009636-A1 · Jan 9, 2020 · US
Integrated hot stamping structure
US-10486749-B2 · Nov 26, 2019 · US
Hemming Head
US-2019255589-A1 · Aug 22, 2019 · US
Hemming structure for hybrid-type door
US-2019176599-A1 · Jun 13, 2019 · US
Hemming structure for hybrid-type door
US-2019176589-A1 · Jun 13, 2019 · US
Hemming structure and hemming method for hybrid-type door
US-2019176590-A1 · Jun 13, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D39/021?
- CPC B21D39/021 is the Cooperative Patent Classification code for “for panels, e.g. vehicle doors.”
- How many patents are filed under CPC B21D39/021 (for panels, e.g. vehicle doors)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC B21D39/021 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).