B21J 7/24
Operated by steam, air, or other gaseous pressure
Official title: operated by steam, air, or other gaseous pressure
B21J7/24 (Operated by steam, air, or other gaseous pressure) appears on 21 US grants and 5 published applications in this corpus.
Search patents in B21J- Granted patents
- 21
- Published applications
- 5
- Assignees
- 13
- Inventors
- 50
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hand-held impact tool for creating dent flaws28 Apr 2026US 12,611,708 B2Textron Innovations Inc.
- Air-operated hammer27 Aug 2024US 12,071,738 B2Equipment Company of America
- Two step hydraulic breaker with automatic stroke adjustment12 Nov 2019US 10,472,797 B2Daemo Engineering Co., Ltd.
- Method of using an impact machine20 Jul 2004US 6,764,644 B2Hydropulsor AB
- Air-operated hammer16 Sep 2003US 6,619,407 B1
- Hand-held impact tool for creating dent flaws11 Sep 2025US 2025/0281965 A1Textron Innovations Inc.
- Air-operated hammer16 Jun 2022US 2022/0186455 A1Equipment Company of America
- Impact tool for machining workpieces16 Jul 2020US 2020/0223049 A1Pitec Deutschland GmbH
- 2 step auto stroke type hyraulic breaker14 Jun 2018US 2018/0163366 A1Daemo Engineering Co., Ltd.
- Impact machine and method of using an impact machine9 Jan 2003US 2003/0007869 A1Hydropulsor AB
Most cited
By later US patents
- Propellant-driven device for crimping large size wire and terminals19US 3,931,726 AAMP Incorporated · 1976
- Adaptive valve control system for an impact device18US 4,131,164 AChambersburg Engineering Company · 1978
- High-speed explosive hammer16US 4,166,375 A1979
- Fluid operable hammer9US 4,150,603 AJoy Manufacturing Company · 1979
- Quiet bouncer driver thruster method with pressurized air chamber encircling massive bouncing piston8US 4,377,355 ABolt Technology Corporation · 1983