F01C 21/0872
The fluid being other than the working fluid
Official title: {the fluid being other than the working fluid}
F01C21/0872 (The fluid being other than the working fluid) appears on 37 US grants and 22 published applications in this corpus.
Search patents in F01C- Granted patents
- 37
- Published applications
- 22
- Assignees
- 18
- Inventors
- 85
- Latest grant
- 23 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 0 |
| 2020 | 0 | 3 |
| 2021 | 0 | 2 |
| 2022 | 4 | 0 |
| 2023 | 0 | 2 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotating heating chamber apparatus and method of use thereof23 Jul 2024US 12,044,128 B2
- Vane rotary compressor with pressure reducing member inserted into the oil supply passage30 Apr 2024US 11,971,032 B2LG Electronics Inc.
- Oil supply to the back pressure groove of a vane pump6 Dec 2022US 11,519,270 B2Gree Electric Appliances, Inc. of Zhuhai
- Vane rotary compressor15 Nov 2022US 11,499,555 B2LG Electronics Inc.
- Vane rotary compressor having a bearing with back pressure pockets30 Aug 2022US 11,428,224 B2LG Electronics Inc.
- Rotary compressor2 Nov 2023US 2023/0349382 A1LG Electronics Inc.
- Vane rotary compressor16 Feb 2023US 2023/0047035 A1LG Electronics Inc.
- Pump body assembly and compressor with pump body assembly2 Sep 2021US 2021/0270268 A1Gree Electric Appliances, Inc. of Zhuhai
- Rotating heating chamber apparatus and method of use thereof13 May 2021US 2021/0140317 A1
- Vane rotary compressor3 Sep 2020US 2020/0277956 A1LG Electronics Inc.
Most cited
By later US patents
- Elliptical rotary engine34US 6,776,136 B12004
- Rotary compressor18US 4,403,929 ANippondenso Co., Ltd. · 1983
- Rotary-vane compressor17US 4,621,986 AAtsugi Motor Parts Company, Limited · 1986
- Rotary vane compressor having pressure-biased vanes17US 4,867,658 ASeiko Seiki Kabushiki Kaisha · 1989
- Rotary vane compressor with valve control of undervane pressure16US 4,447,196 ANippondenso Co., Ltd. · 1984