B25D 9/04
Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids: of
Official title: of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
B25D9/04 (Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids: of) appears on 83 US grants and 92 published applications in this corpus.
Search patents in B25D- Granted patents
- 83
- Published applications
- 92
- Assignees
- 57
- Inventors
- 152
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 4 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 5 |
| 2008 | 2 | 0 |
| 2009 | 0 | 4 |
| 2010 | 3 | 2 |
| 2011 | 1 | 4 |
| 2012 | 4 | 2 |
| 2013 | 3 | 5 |
| 2014 | 4 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 6 |
| 2017 | 3 | 7 |
| 2018 | 1 | 7 |
| 2019 | 7 | 5 |
| 2020 | 4 | 4 |
| 2021 | 2 | 9 |
| 2022 | 3 | 5 |
| 2023 | 6 | 5 |
| 2024 | 7 | 5 |
| 2025 | 3 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound suppressing device attachment for tools30 Jun 2026US 12,667,949 B2The United States of America as represented by the Secretary of the Air Force
- Impacting apparatus10 Mar 2026US 12,569,969 B2Tricord Solutions, Inc.
- Rods for engaging a tool of a hammer within a housing of the hammer27 Jan 2026US 12,534,871 B2Caterpillar Inc.
- Pneumatic chipping hammer4 Nov 2025US 12,459,099 B2Hangzhou Great Star Industrial Co., Ltd.
- Pneumatic hammer9 Sep 2025US 12,409,535 B2
- Linear actor with optimized inductivity and method of winding and connecting coils18 Jun 2026US 2026/0166700 A1Technische Universitaet Wien
- Detachable pneumatic hammer tool21 May 2026US 2026/0138255 A1Hong Ann Tool Industries Co., Ltd.
- Systems and methods for sensors for an impact tool8 Jan 2026US 2026/0008166 A1
- Straight-handle valveless pressurized pneumatic spade7 Aug 2025US 2025/0249564 A1Ningbo Yinzhou Yongdun Pneumatic Tools Manufacturing Co., Ltd.
- Pneumatically operated percussive tool3 Jul 2025US 2025/0214217 A1G. A. W. Inc.
Most cited
By later US patents
- Compression-vacuum action percussive machine30US 5,050,687 A1991
- Pile driving hammer improvement26US 5,727,639 A1998
- Method and apparatus for scraping adherent material from a smooth work surface24US 4,466,851 ALinear Pneumatics Inc. · 1984
- Pneumatic actuator for impact engraving tool24US 9,079,286 B12015
- Variable hand pressure activated power tool21US 6,691,798 B12004