B21D 43/021
Control or correction devices in association with moving strips
Official title: {Control or correction devices in association with moving strips}
B21D43/021 (Control or correction devices in association with moving strips) appears on 115 US grants and 77 published applications in this corpus.
Search patents in B21D- Granted patents
- 115
- Published applications
- 77
- Assignees
- 88
- Inventors
- 248
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 2 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 5 |
| 2014 | 1 | 4 |
| 2015 | 7 | 4 |
| 2016 | 3 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 4 |
| 2019 | 2 | 5 |
| 2020 | 3 | 12 |
| 2021 | 5 | 7 |
| 2022 | 7 | 3 |
| 2023 | 4 | 3 |
| 2024 | 5 | 2 |
| 2025 | 2 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Plate material supplying apparatus10 Mar 2026US 12,569,903 B2Sankyo Seisakusho Co.
- Blanking mold, blanking and stacking apparatus, and blanking method26 Aug 2025US 12,397,338 B2G-Tekt Corporation
- Guide pin connection24 Jun 2025US 12,337,369 B2Standard Lifters, Inc.
- Method and system for lubricating and forming a metal component from sheet metal16 Jul 2024US 12,036,598 B2Ford Global Technologies, LLC
- Stock lifter assembly30 Apr 2024US 11,969,775 B2Standard Lifters, Inc.
- Plant for Forming a Polar Plate of a Fuel Cell, and Associated Forming Method9 Jul 2026US 2026/0192350 A1
- Robot-assisted sheet metal bending loading and unloading path planning method based on svsdf19 Feb 2026US 2026/0048431 A1Nanjing University of Posts and Telecommunications
- Secondary battery electrode plate manufacturing apparatus including die parallelism monitoring device and secondary battery electrode plate manufacturing method8 Jan 2026US 2026/0011708 A1Samsung SDI.Co., Ltd.
- Mechanical arrangement and method for processing a sheet-metal strip unwound from a coil28 Aug 2025US 2025/0269418 A1
- Blanking mold, blanking and stacking apparatus, and blanking method24 Jul 2025US 2025/0235919 A1G-Tekt Corporation
Most cited
By later US patents
- Apparatus for cutting blind slats49US 4,790,226 ATachikawa Corporation · 1988
- Stock lifter for progressive dies41US 4,326,402 A1982
- Stock lifter39US 4,282,736 ABlue Ridge Industrial Technologies, Inc. · 1981
- Method of creating a registered pattern on a metal coil and associated apparatus23US 5,037,665 AEnamel Products & Plating Company · 1991
- Continuous delivery apparatus for work material22US 4,582,271 A1986