F04C 14/14
Using rotating valves
Official title: using rotating valves
F04C14/14 (Using rotating valves) appears on 24 US grants and 29 published applications in this corpus.
Search patents in F04C- Granted patents
- 24
- Published applications
- 29
- Assignees
- 19
- Inventors
- 49
- Latest grant
- 20 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 4 |
| 2016 | 2 | 0 |
| 2017 | 2 | 1 |
| 2018 | 1 | 3 |
| 2019 | 4 | 5 |
| 2020 | 0 | 2 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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Most cited
By later US patents
- Variable displacement balanced vane pump19US 4,272,227 AThe Bendix Corporation · 1981
- Variable displacement pump of vane type17US 4,421,462 AJidosha Kiki Co., Ltd. · 1983
- Axially ported variable volume gerotor pump technology16US 5,476,374 A1995
- Selectively operated gerotor device11US 5,017,101 A1991
- Variable output gerotor pump8US 7,637,725 B2Ford Global Technologies, LLC · 2009