B25D 9/12
Comprising a built-in liquid motor , i.e. the tool being driven by
Official title: comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure}
B25D9/12 (Comprising a built-in liquid motor , i.e. the tool being driven by) appears on 221 US grants and 134 published applications in this corpus.
Search patents in B25D- Granted patents
- 221
- Published applications
- 134
- Assignees
- 99
- Inventors
- 281
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 11 | 0 |
| 1979 | 9 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 4 |
| 2006 | 3 | 2 |
| 2007 | 4 | 4 |
| 2008 | 3 | 2 |
| 2009 | 0 | 6 |
| 2010 | 2 | 4 |
| 2011 | 3 | 3 |
| 2012 | 3 | 4 |
| 2013 | 1 | 4 |
| 2014 | 6 | 4 |
| 2015 | 4 | 16 |
| 2016 | 4 | 11 |
| 2017 | 10 | 13 |
| 2018 | 11 | 7 |
| 2019 | 10 | 5 |
| 2020 | 7 | 7 |
| 2021 | 6 | 5 |
| 2022 | 5 | 5 |
| 2023 | 6 | 7 |
| 2024 | 7 | 7 |
| 2025 | 11 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic impact mechanism for use in equipment for processing rock and concrete16 Jun 2026US 12,655,687 B2T-Rig Limited
- Hydraulic hammer with integrated oil or fluid filter14 Apr 2026US 12,601,142 B2Caterpillar Inc.
- Rods for engaging a tool of a hammer within a housing of the hammer27 Jan 2026US 12,534,871 B2Caterpillar Inc.
- Arrangement and method for heating hydraulic impact device25 Nov 2025US 12,480,364 B2Sandvik Mining and Construction Oy
- Hammer drill and method for deep drilling14 Oct 2025US 12,440,952 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Hydraulic Hammering Device7 May 2026US 2026/0125951 A1Furukawa Rock Drill Co., Ltd.
- Hydraulic hammer with integrated oil or fluid filter2 Apr 2026US 2026/0092428 A1Caterpillar Inc.
- Apparatus comprising a plurality of tools each having at least one hydraulic chamber for hydraulic liquid29 Jan 2026US 2026/0028923 A1Freevalve AB
- Hydraulic breaker provided with automatic lubricant supply structure14 Aug 2025US 2025/0257548 A1Soosan Heavy Industries Co., Ltd.
- Handheld piledriving apparatus24 Jul 2025US 2025/0236002 A1
Most cited
By later US patents
- Hydraulic demolishing rock drill36US 4,474,248 A1984
- Electrohydraulically operated portable power tool27US 3,995,703 ARobert Bosch GmbH · 1976
- Impact tool25US 4,143,585 AHydroacoustics Inc. · 1979
- Method and device for percussion earth drilling25US 4,699,223 AStabilator AB · 1987
- Hydraulic striking device with impact frequency control25US 4,817,737 ANittetsu Jitsugyo Co., Ltd. · 1989