B21D 5/02
On press brakes without making use of clamping means
Official title: on press brakes without making use of clamping means
B21D5/02 (On press brakes without making use of clamping means) appears on 727 US grants and 512 published applications in this corpus.
Search patents in B21D- Granted patents
- 727
- Published applications
- 512
- Assignees
- 273
- Inventors
- 1,006
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 11 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 13 | 0 |
| 1986 | 12 | 0 |
| 1987 | 14 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 13 | 0 |
| 1991 | 21 | 0 |
| 1992 | 13 | 0 |
| 1993 | 11 | 0 |
| 1994 | 18 | 0 |
| 1995 | 9 | 0 |
| 1996 | 18 | 0 |
| 1997 | 12 | 0 |
| 1998 | 16 | 0 |
| 1999 | 17 | 0 |
| 2000 | 18 | 0 |
| 2001 | 19 | 8 |
| 2002 | 14 | 11 |
| 2003 | 24 | 28 |
| 2004 | 22 | 20 |
| 2005 | 16 | 18 |
| 2006 | 19 | 12 |
| 2007 | 12 | 14 |
| 2008 | 8 | 16 |
| 2009 | 9 | 12 |
| 2010 | 13 | 10 |
| 2011 | 6 | 11 |
| 2012 | 8 | 10 |
| 2013 | 12 | 14 |
| 2014 | 6 | 12 |
| 2015 | 12 | 28 |
| 2016 | 17 | 23 |
| 2017 | 25 | 33 |
| 2018 | 18 | 28 |
| 2019 | 34 | 25 |
| 2020 | 21 | 24 |
| 2021 | 22 | 31 |
| 2022 | 18 | 39 |
| 2023 | 25 | 30 |
| 2024 | 31 | 24 |
| 2025 | 29 | 15 |
| 2026 | 10 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Workpiece transfer method, workpiece transfer device, and workpiece transfer program6 Oct 2026US 12,752,331 B2Kawasaki Jukogyo Kabushiki Kaisha
- Container with interchangeable liner1 Sep 2026US 12,723,413 B2
- Bending machine, in particular a press brake, with a safety system11 Aug 2026US 12,703,019 B2Bystronic Laser AG
- Press brake and table driving method for press brake28 Jul 2026US 12,691,484 B2Amada Company, Limited
- Bending method and bending system21 Jul 2026US 12,686,045 B2Amada Company, Limited
- Metal processing method and metal processing system3 Sep 2026US 2026/0257263 A1H-One Co., Ltd.
- Information processor and information processing method27 Aug 2026US 2026/0252038 A1Murata Machinery, Ltd.
- Tool changer for bending machine and tool changing method for bending machine20 Aug 2026US 2026/0241436 A1Amada Company, Limited
- Method for manufacturing press formed article and die set design method13 Aug 2026US 2026/0233279 A1Jfe Steel Corporation
- Production plant comprising a manipulator6 Aug 2026US 2026/0225147 A1TRUMPF Maschinen Austria GmbH & Co. KG.
Most cited
By later US patents
- Intelligent system for generating and executing a sheet metal bending plan70US 5,969,973 AAmada America, Inc. · 1999
- Apparatus and method of compensating for springback in a workpiece51US 4,802,357 AThe Boeing Company · 1989
- Press brake tool holder47US 6,003,360 AWilson Tool International Inc. · 1999
- Beam construction and method of manufacture43US 4,002,000 APalmer-Shile Company · 1977
- Optoelectronic method and apparatus for measuring the bending angle of materials42US 4,564,765 AKarl Mengele & Sohne · 1986