F04B 9/1178
The movement in the other direction being obtained by a hydraulic connection
Official title: {the movement in the other direction being obtained by a hydraulic connection between the liquid motor cylinders}
F04B9/1178 (The movement in the other direction being obtained by a hydraulic connection) appears on 48 US grants and 21 published applications in this corpus.
Search patents in F04B- Granted patents
- 48
- Published applications
- 21
- Assignees
- 31
- Inventors
- 88
- Latest grant
- 24 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 4 |
| 2008 | 1 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Quadraplex fluid pump268US 4,470,771 ATowler Hydraulics, Inc. · 1984
- Hydraulic fluid-driven, multicylinder, modular reciprocating piston pump52US 5,634,779 AFDP Engineering SA · 1997
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