B25D 2209/002
Pressure accumulators
B25D2209/002 (Pressure accumulators) appears on 41 US grants and 32 published applications in this corpus.
Search patents in B25D- Granted patents
- 41
- Published applications
- 32
- Assignees
- 22
- Inventors
- 49
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 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 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 1 | 1 |
| 2016 | 3 | 2 |
| 2017 | 2 | 5 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 2 |
| 2021 | 4 | 1 |
| 2022 | 0 | 3 |
| 2023 | 3 | 3 |
| 2024 | 3 | 2 |
| 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
- Hydraulic hammer internal damping15 Jul 2025US 12,358,113 B2Caterpillar Inc.
- Head valve system for air spring power tool1 Apr 2025US 12,263,568 B2Basso Industry Corp.
- 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.
- Hydraulic Hammer Internal Damping1 Aug 2024US 2024/0253199 A1Caterpillar Inc.
- Percussion apparatus equipped with a pressure regulating device26 Oct 2023US 2023/0339087 A1Montabert
- Head Valve System for Air Spring Power Tool16 Mar 2023US 2023/0081812 A1Basso Industry Corp.
Most cited
By later US patents
- Hydraulic demolishing rock drill36US 4,474,248 A1984
- Impact tool25US 4,143,585 AHydroacoustics Inc. · 1979
- Hydraulically operated percussive machine and an accumulator therefor21US 4,676,323 AAtlas Copco Aktiebolag · 1987
- Impact tool18US 7,156,190 B2Clark Equipment Company · 2007
- Impact device17US 4,784,228 ATeisaku Corporation · 1988