B21D 51/383
Scoring lines, tear strips or pulling tabs
Official title: {scoring lines, tear strips or pulling tabs}
B21D51/383 (Scoring lines, tear strips or pulling tabs) appears on 366 US grants and 162 published applications in this corpus.
Search patents in B21D- Granted patents
- 366
- Published applications
- 162
- Assignees
- 119
- Inventors
- 436
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 22 | 0 |
| 1978 | 17 | 0 |
| 1979 | 12 | 0 |
| 1980 | 15 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 12 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 8 | 0 |
| 2003 | 2 | 6 |
| 2004 | 5 | 5 |
| 2005 | 3 | 5 |
| 2006 | 5 | 6 |
| 2007 | 6 | 5 |
| 2008 | 3 | 10 |
| 2009 | 5 | 2 |
| 2010 | 6 | 6 |
| 2011 | 5 | 5 |
| 2012 | 5 | 4 |
| 2013 | 5 | 11 |
| 2014 | 2 | 8 |
| 2015 | 8 | 14 |
| 2016 | 10 | 7 |
| 2017 | 9 | 11 |
| 2018 | 5 | 8 |
| 2019 | 8 | 7 |
| 2020 | 7 | 4 |
| 2021 | 5 | 10 |
| 2022 | 5 | 5 |
| 2023 | 6 | 5 |
| 2024 | 5 | 7 |
| 2025 | 6 | 3 |
| 2026 | 0 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pull tab with improved accessibility and associated methods of manufacture2 Dec 2025US 12,486,072 B1Intellectual Capital Management
- Method for producing an easy-open lid for a container, and an easy-open lid for a container29 Jul 2025US 12,371,223 B2Trivium Packaging Group Netherlands B.V.
- Manufacturing tooling and methods for producing push button container closures20 May 2025US 12,303,958 B2Consumer Convenience Technologies LLC
- Gas analyte spectrum sharpening and separation with multi-dimensional micro-GC for gas chromatography analysis1 Apr 2025US 12,265,067 B2TricornTech Corporation
- Pull tab with raised lift end and associated method11 Mar 2025US 12,246,371 B1Intellectual Capital Management
- Explosion-proof valve, top cover assembly, and battery18 Jun 2026US 2026/0171564 A1Sunwoda Mobility Energy Technology Co., Ltd.
- Paneling tooling assemblies4 Jun 2026US 2026/0151818 A1Stolle Machinery Company, LLC
- Methods of forming panels on can ends4 Jun 2026US 2026/0151819 A1Stolle Machinery Company, LLC
- Relieved bubble tooling assemblies4 Jun 2026US 2026/0151820 A1Stolle Machinery Company, LLC
- Rivet button tooling assemblies4 Jun 2026US 2026/0151821 A1Stolle Machinery Company, LLC
Most cited
By later US patents
- Metal container end86US 4,448,322 ANational Can Corporation · 1984
- Self-opening can lid with improved contour of score84US 5,064,087 AKoch Systems Incorporated · 1991
- Container with attached closure81US 4,084,721 AThe Continental Group, Inc. · 1978
- Can end78US 7,108,469 B2Crown Cork & Seal Technologies Corporation · 2006
- Method and apparatus for forming ends73US 4,217,843 ANational Can Corporation · 1980