B21J 7/46
Control devices specially adapted to forging hammers, not restricted to one of
Official title: Control devices specially adapted to forging hammers, not restricted to one of the preceding subgroups
B21J7/46 (Control devices specially adapted to forging hammers, not restricted to one of) appears on 24 US grants and 16 published applications in this corpus.
Search patents in B21J- Granted patents
- 24
- Published applications
- 16
- Assignees
- 18
- Inventors
- 58
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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 monitoring and for changing the position of at least one running bar of a metal press, and metal press12 Aug 2025US 12,383,947 B2SMS group GmbH
- Composite forming system combining additive manufacturing and forging and methods for same2 Apr 2024US 11,945,047 B2General Electric Company
- Forming machine, in particular forging hammer, and method for controlling a forming machine29 Dec 2020US 10,875,082 B2Langenstein & Schemann GmbH
- Smx forging strategy25 Dec 2025US 2025/0387826 A1SMS group GmbH
- Hand-held impact tool for creating dent flaws11 Sep 2025US 2025/0281965 A1Textron Innovations Inc.
- Hydraulic Forming Machine for Workpiece Forming, Hydraulic Control Unit and Method for Controlling a Hydraulic Cylinder of a Hydraulic Forming Machine6 Mar 2025US 2025/0073774 A1
- Hydraulic forming machine for pressing workpieces, in particular forging hammer, and method for operating a hydraulic forming machine, in particular a forging hammer30 May 2024US 2024/0173765 A1Langenstein & Schemann GmbH
- Method for monitoring and for changing the position of at least one running bar of a metal press, and metal press23 Nov 2023US 2023/0372990 A1SMS group GmbH
Most cited
By later US patents
- Adaptive valve control system for an impact device18US 4,131,164 AChambersburg Engineering Company · 1978
- Fluid operable hammer9US 4,150,603 AJoy Manufacturing Company · 1979
- Method of controlling output energy in a forging hammer by anticipative sensing of input parameters8US 4,718,263 AChambersburg Engineering Company · 1988
- Method and apparatus for setting the value of the forging dimension in forging presses using V-dies as forging tools7US 4,098,105 ASchloemann-Siemag Aktiengesellschaft · 1978
- Adaptive, self-regulating forging hammer control system7US 4,653,300 AChambersburg Engineering Company · 1987