B21D 51/40
Making outlet openings
Official title: Making outlet openings, e.g. bung holes
B21D51/40 (Making outlet openings) appears on 63 US grants and 31 published applications in this corpus.
Search patents in B21D- Granted patents
- 63
- Published applications
- 31
- Assignees
- 35
- Inventors
- 106
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 0 |
| 2015 | 2 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 6 |
| 2020 | 0 | 1 |
| 2021 | 4 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 3 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Can shell, and associated tooling and method19 May 2026US 12,629,744 B2Stolle Machinery Company, LLC
- Metal container with a carrier ring and methods of making the same6 May 2025US 12,291,372 B2Belvac Production Machinery, Inc.
- Method for manufacturing double-layer fair mugs12 Nov 2024US 12,138,717 B1
- Metallic container with a threaded closure13 Feb 2024US 11,897,021 B2Ball Corporation
- Apparatus to seal a metallic container6 Feb 2024US 11,891,208 B2Ball Corporation
- Methods of forming can ends with relieved bubbles4 Jun 2026US 2026/0151824 A1Stolle Machinery Company, LLC
- Can shell, and associated tooling and method12 Mar 2026US 2026/0070115 A1Stolle Machinery Company, LLC
- Food and beverage can tab19 Dec 2024US 2024/0417132 A1CANPACK FOOD and INDUSTRIAL PACKAGING sp. z o.o.
- Metal container with a carrier ring and methods of making the same19 Sep 2024US 2024/0308717 A1Belvac Production Machinery, Inc.
- Metal container with a carrier ring and methods of making the same19 Sep 2024US 2024/0308719 A1
Most cited
By later US patents
- Threaded aluminum cans and methods of manufacture181US 5,718,352 AAluminum Company of America · 1998
- Lightweight reclosable can with attached threaded pour spout and methods of manufacture164US 6,010,028 AAluminum Company of America · 2000
- Method of making bottle-shaped metal cans155US 5,822,843 AAluminum Company of America · 1998
- Assembly of aluminum can and threaded sleeve111US 6,010,026 AAluminum Company of America · 2000
- Method and apparatus for necking a metal container and resultant container104US 5,778,723 AAluminum Company of America · 1998