B21J 7/00
Hammers
Official title: Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H)
B21J7/00 (Hammers) appears on 245 US grants and 146 published applications in this corpus.
Search patents in B21J- Granted patents
- 245
- Published applications
- 146
- Assignees
- 143
- Inventors
- 468
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 5 |
| 2003 | 1 | 5 |
| 2004 | 5 | 5 |
| 2005 | 3 | 2 |
| 2006 | 3 | 9 |
| 2007 | 0 | 0 |
| 2008 | 4 | 3 |
| 2009 | 1 | 4 |
| 2010 | 1 | 2 |
| 2011 | 1 | 3 |
| 2012 | 4 | 4 |
| 2013 | 1 | 7 |
| 2014 | 0 | 3 |
| 2015 | 3 | 5 |
| 2016 | 9 | 10 |
| 2017 | 7 | 11 |
| 2018 | 5 | 9 |
| 2019 | 9 | 8 |
| 2020 | 8 | 9 |
| 2021 | 8 | 9 |
| 2022 | 7 | 8 |
| 2023 | 5 | 6 |
| 2024 | 5 | 10 |
| 2025 | 6 | 4 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sheet metal coining method utilizing bilateral coin punching16 Jun 2026US 12,654,216 B2Schaeffler Technologies AG & Co. KG
- Methods of material forming and/or cutting28 Apr 2026US 12,611,706 B2Cell Impact AB
- Hand-held impact tool for creating dent flaws28 Apr 2026US 12,611,708 B2Textron Innovations Inc.
- Hydraulic forming machine for pressing workpieces, in particular forging hammer, and method for operating a hydraulic forming machine, in particular a forging hammer14 Apr 2026US 12,599,954 B2Langenstein & Schemann GmbH
- Method for automated pass schedule calculation in radial forging31 Mar 2026US 12,589,429 B2SMS group GmbH
- Systems and methods for the local incremental deformation of local component regions6 Aug 2026US 2026/0227764 A1Ohio State Innovation Foundation
- Forming tool, forming tool assembly, forming machine, forming method and computer program for producing a cylindrical workpiece having a helical outer contour by means of swaging16 Jul 2026US 2026/0199959 A1FELSS Systems GmbH
- Tool holder clamp and storage2 Jul 2026US 2026/0184033 A1OP S.r.l.
- Forming jaw of a rotary swaging tool for shaping a plastically deformable workpiece, and rotary swaging tool having at least one forming jaw4 Jun 2026US 2026/0151825 A1FELSS Systems GmbH
- Chain link and method for producing a chain link1 Jan 2026US 2026/0002578 A1Thiele GmbH & Co.KG
Most cited
By later US patents
- Medical suturing device, a single-strike die mechanism, and a method of using said die mechanism for forming the medical suturing device158US 5,411,521 AAmerican Cyanamid Company · 1995
- Radial press for workpieces having a cylindrical exterior surface45US 4,578,982 A1986
- Medical suturing device, a single-strike die mechanism, and a method of using said die mechanism for forming the medical suturing device43US 5,230,352 AAmerican Cyanamid Company · 1993
- Method of welding metals using stress waves35US 3,961,739 AGrumman Aerospace Corporation · 1976
- Stand alone swage dial drive assembly32US 5,873,212 AEthicon, Inc. · 1999