B21D 37/147
Tool exchange carts
Official title: {Tool exchange carts}
B21D37/147 (Tool exchange carts) appears on 35 US grants and 29 published applications in this corpus.
Search patents in B21D- Granted patents
- 35
- Published applications
- 29
- Assignees
- 29
- Inventors
- 66
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 4 |
| 2018 | 1 | 4 |
| 2019 | 6 | 7 |
| 2020 | 4 | 5 |
| 2021 | 1 | 0 |
| 2022 | 4 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for bending elongated metal products15 Sep 2026US 12,734,572 B2M. E. P. Macchine Elettroniche Piegatrici SpA
- Sheet metal press system and method used in connection therewith16 May 2023US 11,648,601 B2Hedin Lagan AB
- Roll forming machine4 Apr 2023US 11,618,065 B2Nakata Manufacturing Co., Ltd.
- Device for positioning a bending tool8 Nov 2022US 11,491,530 B2TRUMPF Maschinen Austria GmbH & Co. KG.
- Loading method for a machine tool and tool transfer device18 Oct 2022US 11,471,927 B2TRUMPF Maschinen Austria GmbH & Co. KG.
- Tool storage device and bending system31 Jul 2025US 2025/0242461 A1Amada Company, Limited
- Apparatus and method for bending elongated metal products15 May 2025US 2025/0153233 A1M. E. P. Macchine Elettroniche Piegatrici SpA
- Roll forming machine19 Nov 2020US 2020/0360975 A1Nakata Manufacturing Co., Ltd.
- Sheet metal press system and method used in connection therewith8 Oct 2020US 2020/0316669 A1Hedin Lagan AB
- Punch press set-up10 Sep 2020US 2020/0282443 A1KIEFEL GmbH
Most cited
By later US patents
- Transferring device for dies and the like28US 4,597,709 AAioi Seiki Kabushiki Kaisha · 1986
- Bridge type punch press21US 4,503,741 AThe Warner & Swasey Company · 1985
- Dies exchanging device for a machine using dies19US 4,449,907 AAioi Seiki Kabushiki Kaisha · 1984
- Punch press machine16US 6,013,017 AMurata Kikai Kabushiki Kaisha · 2000
- Storage system for automatically storing and removing dies13US 5,791,852 AFederal Business Development Bank · 1998