F04B 2027/1827
Between crankcase and discharge chamber
Official title: {between crankcase and discharge chamber}
F04B2027/1827 (Between crankcase and discharge chamber) appears on 340 US grants and 275 published applications in this corpus.
Search patents in F04B- Granted patents
- 340
- Published applications
- 275
- Assignees
- 58
- Inventors
- 366
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 24 | 0 |
| 2001 | 27 | 14 |
| 2002 | 30 | 16 |
| 2003 | 25 | 22 |
| 2004 | 16 | 22 |
| 2005 | 7 | 19 |
| 2006 | 11 | 17 |
| 2007 | 6 | 15 |
| 2008 | 6 | 7 |
| 2009 | 6 | 15 |
| 2010 | 6 | 7 |
| 2011 | 5 | 5 |
| 2012 | 7 | 7 |
| 2013 | 5 | 5 |
| 2014 | 4 | 4 |
| 2015 | 6 | 16 |
| 2016 | 5 | 4 |
| 2017 | 11 | 12 |
| 2018 | 4 | 5 |
| 2019 | 3 | 10 |
| 2020 | 10 | 20 |
| 2021 | 6 | 19 |
| 2022 | 22 | 9 |
| 2023 | 10 | 4 |
| 2024 | 8 | 1 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Variable-displacement swash plate type compressor1 Jul 2025US 12,345,246 B2Valeo Japan Co., Ltd.
- Capacity control valve6 May 2025US 12,292,130 B2Eagle Industry Co., Ltd.
- Capacity control valve8 Apr 2025US 12,270,476 B2Eagle Industry Co., Ltd.
- Capacity control valve8 Oct 2024US 12,110,882 B2Eagle Industry Co., Ltd.
- Capacity control valve9 Jul 2024US 12,031,531 B2Eagle Industry Co., Ltd.
- Variable-displacement swash plate type compressor11 Jan 2024US 2024/0011480 A1Valeo Japan Co., Ltd.
- Capacity control valve22 Jun 2023US 2023/0193889 A1Eagle Industry Co., Ltd.
- Capacity control valve1 Jun 2023US 2023/0167814 A1Eagle Industry Co., Ltd.
- Capacity control valve25 May 2023US 2023/0160477 A1Eagle Industry Co., Ltd.
- Capacity control valve and capacity control valve control method30 Mar 2023US 2023/0097864 A1Eagle Industry Co., Ltd.
Most cited
By later US patents
- Variable displacement compressor control valve arrangement87US 4,428,718 AGeneral Motors Corporation · 1984
- Control system for variable displacement compressor85US 4,037,993 ABorg-Warner Corporation · 1977
- Control valve unit with independently operable valve mechanisms for variable displacement compressor77US 6,010,312 AKabushiki Kaisha Toyoda Jidoshokki Seiksakusho · 2000
- Variable capacity compressor68US 4,174,191 ABorg-Warner Corporation · 1979
- Variable capacity wobble plate compressor capable of controlling angularity of wobble plate with high responsiveness59US 4,526,516 ADiesel Kiki Co., Ltd. · 1985