B21D 19/082
For making negative angles
Official title: {for making negative angles}
B21D19/082 (For making negative angles) appears on 55 US grants and 61 published applications in this corpus.
Search patents in B21D- Granted patents
- 55
- Published applications
- 61
- Assignees
- 32
- Inventors
- 84
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 4 |
| 2003 | 4 | 2 |
| 2004 | 1 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 4 |
| 2010 | 4 | 3 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 3 | 2 |
| 2014 | 3 | 4 |
| 2015 | 4 | 4 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 5 |
| 2020 | 0 | 2 |
| 2021 | 2 | 4 |
| 2022 | 6 | 3 |
| 2023 | 3 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Press forming apparatus7 Oct 2025US 12,434,292 B2Hyundai Motor Company
- Slider arrangement7 Oct 2025US 12,434,451 B2Fibro GmbH
- Flange forming device and method of forming a flange on a sheet metal part to reduce surface distortion28 May 2024US 11,992,870 B2Ford Motor Company
- Method of manufacturing connection member9 Apr 2024US 11,951,521 B2Aisin Takaoka Co., Ltd.
- Stretch flanging tool, stretch flanging method using the same, and member with stretch flange3 Oct 2023US 11,772,147 B2Nippon Steel Corporation
- Device and method for hot stamping25 Dec 2025US 2025/0387821 A1
- Cam-type press apparatus1 Feb 2024US 2024/0033800 A1Hongik University Industry-Academia Cooperation Foundation
- Press forming apparatus16 Nov 2023US 2023/0364668 A1Hyundai Motor Company
- Slider arrangement21 Sep 2023US 2023/0294375 A1Fibro GmbH
- Wedge Drive Having Adjustable Working And Installation Position13 Oct 2022US 2022/0325730 A1Fibro GmbH
Most cited
By later US patents
- Thin sheet forming die assembly including lower die cylindrical member having varied diameters22US 5,746,082 AUmix Co., Ltd. · 1998
- Thin sheet forming die assembly including a lower die having plural parallel rotating cylindrical members22US 5,784,916 AUmix Co., Ltd. · 1998
- Forming die for thin plate21US 5,347,838 AUmix Co., Ltd. · 1994
- Negative angular forming die and pressing apparatus20US 6,196,040 B1Umix Co., Ltd. · 2001
- Negative angle-forming die14US 6,230,536 B1Umix Co., Ltd. · 2001