F04B 2027/1886
Open fluid passage
Official title: {Open (not controlling) fluid passage}
F04B2027/1886 (Open fluid passage) appears on 77 US grants and 50 published applications in this corpus.
Search patents in F04B- Granted patents
- 77
- Published applications
- 50
- Assignees
- 23
- Inventors
- 164
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 2 |
| 2003 | 4 | 9 |
| 2004 | 5 | 5 |
| 2005 | 3 | 6 |
| 2006 | 1 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 10 |
| 2016 | 1 | 1 |
| 2017 | 7 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 2 |
| 2024 | 3 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Variable-displacement swash plate type compressor1 Jul 2025US 12,345,246 B2Valeo Japan Co., Ltd.
- Valve1 Apr 2025US 12,264,744 B2Eagle Industry Co., Ltd.
- Swash plate compressor30 Jul 2024US 12,049,881 B2Hanon Systems
- Compressor28 May 2024US 11,994,119 B2Hanon Systems
- Capacity control valve16 Jan 2024US 11,873,804 B2Eagle Industry Co., Ltd.
- Variable-displacement swash plate type compressor11 Jan 2024US 2024/0011480 A1Valeo Japan Co., Ltd.
- Valve14 Dec 2023US 2023/0400104 A1Eagle Industry Co., Ltd.
- Swash plate compressor29 Jun 2023US 2023/0204021 A1Hanon Systems
- Capacity control valve13 Oct 2022US 2022/0325709 A1Eagle Industry Co., Ltd.
- Capacity control valve4 Aug 2022US 2022/0243710 A1Eagle Industry Co., Ltd.
Most cited
By later US patents
- Variable displacement wobble plate type compressor with wobble angle control unit48US 4,685,866 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 1987
- Variable displacement compressor with variable angle wobble plate and wobble angle control unit48US 4,688,997 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 1987
- Capacity control valve37US 6,772,990 B2Eagle Industry Co., Ltd. · 2004
- Variable capacity wobble plate compressor with prompt capacity control33US 4,533,299 ADiesel Kiki Co., Ltd. · 1985
- Control apparatus for variable displacement compressor29US 5,785,502 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 1998