F04C 19/007
Port members in the form of side plates
Official title: {Port members in the form of side plates}
F04C19/007 (Port members in the form of side plates) appears on 38 US grants and 21 published applications in this corpus.
Search patents in F04C- Granted patents
- 38
- Published applications
- 21
- Assignees
- 19
- Inventors
- 54
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 3 | 2 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 3 | 6 |
| 2022 | 0 | 1 |
| 2023 | 5 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Turbomachine provided with a magnetic drive pump14 Oct 2025US 12,442,385 B2Safran Helicopter Engines
- Valve arrangement17 Sep 2024US 12,092,106 B2
- Liquid ring pump control28 Nov 2023US 11,828,285 B2Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Control system for liquid ring pumps5 Sep 2023US 11,746,785 B2Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Liquid ring pump control4 Apr 2023US 11,619,232 B2Edwards Limited
- Turbomachine provided with a magnetic drive pump2 May 2024US 2024/0141911 A1Safran Helicopter Engines
- Valve arrangement2 Feb 2023US 2023/0034235 A1
- Centrifugal Air Compressor and Control25 Aug 2022US 2022/0268286 A1Pecheanu Air Compressors Inc.
- A liquid ring pump manifold2 Dec 2021US 2021/0372402 A1Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
- Control system for liquid ring pumps25 Nov 2021US 2021/0364003 A1Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
Most cited
By later US patents
- Liquid ring flash expander23US 5,722,255 A1998
- Liquid ring pump21US 4,132,504 AGeneral Signal Corporation · 1979
- Liquid ring pump with a control disk arranged between the impeller housing and the cover19US 4,443,158 ASiemens Aktiengesellschaft · 1984
- Water ring vacuum pump having adjustable part plates and a hollow impeller19US 4,637,780 APrescant Pty. Limited · 1987
- Liquid ring pumps19US 5,507,625 AThe Nash Engineering Company · 1996