F15B 2201/43
Anti-extrusion means
F15B2201/43 (Anti-extrusion means) appears on 122 US grants and 17 published applications in this corpus.
Search patents in F15B- Granted patents
- 122
- Published applications
- 17
- Assignees
- 42
- Inventors
- 97
- Latest grant
- 25 Apr 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 12 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 4 |
| 2005 | 4 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pressure accumulator and percussion device25 Apr 2017US 9,630,306 B2Construction Tools PC AB
- Surge accumulator for hydraulic hammer27 Dec 2016US 9,527,198 B2Caterpillar Inc.
- Hydro-pneumatic pressure vessel29 Oct 2013US 8,567,636 B2
- Hydraulic accumulator, in particular a membrane accumulator24 Sep 2013US 8,539,984 B2Hydac Technology GmbH
- Hydraulic pressure accumulator5 May 2009US 7,527,074 B1The United States of America as represented by the Administrator of the United States Enviromental Protection Agency
- Bellows Accumulator2 Oct 2025US 2025/0305520 A1Hydac Technology GmbH
- Accumulator27 May 2021US 2021/0156402 A1Eagle Industry Co., Ltd.
- Pressure accumulator and percussion device26 Feb 2015US 2015/0053076 A1Construction Tools PC AB
- Surge accumulator for hydraulic hammer1 Jan 2015US 2015/0000949 A1Caterpillar Inc.
- Hydro-pneumatic pressure vessel21 Jun 2012US 2012/0152959 A1
Most cited
By later US patents
- Pressure vessel49US 4,610,369 A1986
- Hydraulic accumulator with dividing wall supported by connecting and retaining parts46US 5,427,152 AHydac Technology GmbH · 1995
- Pressure accumulator39US 3,961,646 AGreer Hydraulics, Inc. · 1976
- Method of assembling a pressure vessel39US 4,425,698 ADeere & Company · 1984
- Pulsation absorbing device38US 4,759,387 AWilkes-McLean, Ltd. · 1988