B25D 9/145
For hydraulically actuated hammers having an accumulator
Official title: {for hydraulically actuated hammers having an accumulator}
B25D9/145 (For hydraulically actuated hammers having an accumulator) appears on 156 US grants and 69 published applications in this corpus.
Search patents in B25D- Granted patents
- 156
- Published applications
- 69
- Assignees
- 73
- Inventors
- 200
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 4 |
| 2008 | 3 | 0 |
| 2009 | 1 | 4 |
| 2010 | 0 | 3 |
| 2011 | 2 | 1 |
| 2012 | 6 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 7 |
| 2015 | 1 | 5 |
| 2016 | 4 | 8 |
| 2017 | 9 | 7 |
| 2018 | 6 | 3 |
| 2019 | 1 | 2 |
| 2020 | 4 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 4 |
| 2023 | 4 | 2 |
| 2024 | 4 | 3 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic impact mechanism for use in equipment for processing rock and concrete16 Jun 2026US 12,655,687 B2T-Rig Limited
- Arrangement and method for heating hydraulic impact device25 Nov 2025US 12,480,364 B2Sandvik Mining and Construction Oy
- Hydraulic hammer internal damping15 Jul 2025US 12,358,113 B2Caterpillar Inc.
- Percussion apparatus equipped with a pressure regulating device7 Jan 2025US 12,186,873 B2Montabert
- Hydraulic hammer with dampening accumulator24 Dec 2024US 12,172,287 B2Caterpillar Inc.
- Hydraulic impact mechanism for use in equipment for processing rock and concrete27 Mar 2025US 2025/0101807 A1T-Rig Limited
- Hydraulic Hammer with Dampening Accumulator3 Oct 2024US 2024/0326212 A1Caterpillar Inc.
- Arrangement and method for heating hydraulic impact device15 Aug 2024US 2024/0271488 A1Sandvik Mining and Construction Oy
- Hydraulic Hammer Internal Damping1 Aug 2024US 2024/0253199 A1Caterpillar Inc.
- Percussion apparatus equipped with a pressure regulating device26 Oct 2023US 2023/0339087 A1Montabert
Most cited
By later US patents
- Hydraulic percussion apparatus36US 5,392,865 AEtablissements Montabert · 1995
- Hydraulic striking device35US 4,646,854 AFried. Krupp Gesellschaft mit beschrankter Haftung · 1987
- Damped hammer drill29US 5,056,606 AEimco-Secoma Societe Anonyme · 1991
- Hydraulic operated rock drilling apparatus27US 4,006,783 ALinden-Alimak AB · 1977
- Hydraulic striking device with impact frequency control25US 4,817,737 ANittetsu Jitsugyo Co., Ltd. · 1989