B21D 22/04
For dimpling
Official title: for dimpling (combined with perforating B21D28/24)
B21D22/04 (For dimpling) appears on 154 US grants and 133 published applications in this corpus.
Search patents in B21D- Granted patents
- 154
- Published applications
- 133
- Assignees
- 126
- Inventors
- 356
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 3 |
| 2002 | 5 | 5 |
| 2003 | 2 | 3 |
| 2004 | 4 | 7 |
| 2005 | 4 | 2 |
| 2006 | 5 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 5 |
| 2010 | 1 | 4 |
| 2011 | 1 | 1 |
| 2012 | 3 | 5 |
| 2013 | 3 | 3 |
| 2014 | 4 | 6 |
| 2015 | 3 | 5 |
| 2016 | 3 | 7 |
| 2017 | 5 | 9 |
| 2018 | 7 | 6 |
| 2019 | 6 | 12 |
| 2020 | 6 | 9 |
| 2021 | 4 | 11 |
| 2022 | 9 | 11 |
| 2023 | 9 | 3 |
| 2024 | 5 | 4 |
| 2025 | 4 | 4 |
| 2026 | 0 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chassis component and method for producing a chassis component7 Oct 2025US 12,434,519 B2Benteler Automobiltechnik GmbH
- Battery cell with improved weldability and apparatus for processing the same17 Jun 2025US 12,334,490 B2LG Energy Solution, Ltd.
- Manufacturing tooling and methods for producing push button container closures20 May 2025US 12,303,958 B2Consumer Convenience Technologies LLC
- Can end with a coined rivet, tooling assembly therefor and a method of forming21 Jan 2025US 12,202,030 B2Stolle Machinery Company, LLC
- Container system and method for forming a knob in a container12 Nov 2024US 12,138,087 B2Aesculap AG
- Bump preparation apparatus, battery production system, and winding method20 Aug 2026US 2026/0241434 A1Contemporary Amperex Technology Co., Limited
- Methods of forming rounded rivet buttons on can ends4 Jun 2026US 2026/0151817 A1Stolle Machinery Company, LLC
- Pre-tensioned battery shelf28 May 2026US 2026/0144369 A1Vertiv Corporation
- Increasing strength in a metal sheet26 Feb 2026US 2026/0054302 A1Meta Platforms Technologies, LLC
- Component of a domestic appliance comprising micro-indentations, pressing tool and manufacturing method for the component12 Feb 2026US 2026/0042134 A1Electrolux Appliances Aktiebolag
Most cited
By later US patents
- Two stage die set50US 5,722,280 A1998
- Automated dimpling apparatus39US 5,673,585 A1997
- Method of forming a collar for heating exchanger fin and die for use therein35US 4,956,989 AMatsushita Electric Industrial Co., Ltd. · 1990
- Suspension arm, and process for producing the same29US 5,662,349 AHonda Giken Kogyo Kabushiki Kaisha · 1997
- Tubing connector26US 6,474,701 B1Weatherford/Lamb, Inc. · 2002