B21D 31/02
Stabbing or piercing
Official title: Stabbing or piercing, e.g. for making sieves (dimpling B21D22/04; perforating by punching B21D28/24)
B21D31/02 (Stabbing or piercing) appears on 72 US grants and 52 published applications in this corpus.
Search patents in B21D- Granted patents
- 72
- Published applications
- 52
- Assignees
- 50
- Inventors
- 102
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 2 |
| 2006 | 3 | 5 |
| 2007 | 0 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 4 |
| 2012 | 1 | 4 |
| 2013 | 1 | 1 |
| 2014 | 6 | 2 |
| 2015 | 1 | 3 |
| 2016 | 3 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 4 |
| 2020 | 0 | 1 |
| 2021 | 3 | 4 |
| 2022 | 2 | 2 |
| 2023 | 4 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite punched screen for high pressure applications7 Apr 2026US 12,595,720 B2Variperm Energy Services Inc.
- Bulk textured material sheeting18 Mar 2025US 12,251,748 B2Gripmetal Limited
- Bulk textured material sheeting2 Jan 2024US 11,858,025 B2Gripmetal Limited
- Method of manufacturing a perforated sheet, perforated sheet, shaped part and processing device12 Dec 2023US 11,839,911 B2Luebbers Fts GmbH
- Pierced thermal interface constructions3 Oct 2023US 11,774,190 B2International Business Machines Corporation
- Composite Punched Screen for High Pressure Applications14 Nov 2024US 2024/0376805 A1Variperm Energy Services Inc.
- In-die detection sensor for tapping assembly26 Sep 2024US 2024/0316612 A1Lear Corporation
- Bulk textured material sheeting21 Mar 2024US 2024/0091841 A1Gripmetal Limited
- Metal Foil Catalyst For The Control Of Emissions From Diesel Engines22 Sep 2022US 2022/0297063 A1Catalytic Combustion Corporation
- Method for producing an overlapping connection, and body component for a vehicle25 Aug 2022US 2022/0266329 A1Audi AG
Most cited
By later US patents
- Punch and die for producing connector plates46US 6,066,048 AAlpine Engineered Products, Inc. · 2000
- Programmable magnetic repulsion punching apparatus33US 4,872,381 AInternational Business Machines Corporation · 1989
- Razor blade manufacture30US 5,458,025 AThe Gillette Company · 1995
- Method for manufacturing high flow insufflation needle stylet25US 8,028,395 B2Applied Medical Resources Corporation · 2011
- Attachment for pneumatic hammers for punching holes of varying size24US 4,545,440 A1985