B25B 21/005
Driven by a radially acting hydraulic or pneumatic piston
Official title: {driven by a radially acting hydraulic or pneumatic piston}
B25B21/005 (Driven by a radially acting hydraulic or pneumatic piston) appears on 251 US grants and 150 published applications in this corpus.
Search patents in B25B- Granted patents
- 251
- Published applications
- 150
- Assignees
- 92
- Inventors
- 236
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 3 |
| 2002 | 5 | 3 |
| 2003 | 5 | 4 |
| 2004 | 2 | 7 |
| 2005 | 3 | 5 |
| 2006 | 7 | 4 |
| 2007 | 4 | 1 |
| 2008 | 0 | 3 |
| 2009 | 2 | 4 |
| 2010 | 2 | 4 |
| 2011 | 4 | 9 |
| 2012 | 2 | 5 |
| 2013 | 5 | 5 |
| 2014 | 7 | 13 |
| 2015 | 7 | 9 |
| 2016 | 7 | 9 |
| 2017 | 6 | 4 |
| 2018 | 3 | 9 |
| 2019 | 8 | 6 |
| 2020 | 5 | 11 |
| 2021 | 8 | 5 |
| 2022 | 9 | 6 |
| 2023 | 7 | 6 |
| 2024 | 4 | 9 |
| 2025 | 7 | 6 |
| 2026 | 5 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Hydraulic hand-held knockout punch driver13 Mar 2025US 2025/0083353 A1Milwaukee Electric Tool Corporation
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Most cited
By later US patents
- Crosshead jam nut torque tool40US 6,279,427 B1Francis Torq/Lite, Inc. · 2001
- Fluid operated wrench for tightening or loosening a threaded connector30US 4,706,527 A1987
- Power screw driver with a ratchet wheel having finely graduated toothing30US 4,709,600 AApplied Power Inc. · 1987
- Mechanical tensioner29US 5,318,397 A1994
- Method of elongating and relaxing a stud29US 5,341,560 A1994