F04C 19/002
Rotary-piston pumps with fluid ring or the like, specially adapted for elastic
Official title: {with rotating outer members}
F04C19/002 (Rotary-piston pumps with fluid ring or the like, specially adapted for elastic) appears on 50 US grants and 47 published applications in this corpus.
Search patents in F04C- Granted patents
- 50
- Published applications
- 47
- Assignees
- 12
- Inventors
- 46
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 5 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 7 |
| 2009 | 2 | 3 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 3 |
| 2013 | 5 | 3 |
| 2014 | 1 | 5 |
| 2015 | 4 | 1 |
| 2016 | 2 | 3 |
| 2017 | 2 | 2 |
| 2018 | 2 | 1 |
| 2019 | 3 | 2 |
| 2020 | 1 | 2 |
| 2021 | 4 | 2 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Devices and methods for handling a fluid working medium16 Nov 2023US 2023/0371377 A1
- Water Vapor Distillation Apparatus, Method and System13 Jan 2022US 2022/0008837 A1DEKA Products Limited Partnership
- Pressurized Vapor Cycle Liquid Distillation10 Jun 2021US 2021/0170299 A1DEKA Products Limited Partnership
- Gas compressor with eductor assembly11 Mar 2021US 2021/0071687 A1Carnot Compression Inc.
- Pressurized Vapor Cycle Liquid Distillation19 Nov 2020US 2020/0360832 A1DEKA Products Limited Partnership
Most cited
By later US patents
- Liquid ring pumps with hermetically sealed motor rotors52US 7,465,375 B2DEKA Products Limited Partnership · 2008
- Pressurized vapor cycle liquid distillation43US 7,597,784 B2DEKA Products Limited Partnership · 2009
- Bearing fluid distribution systems for liquid ring pumps with rotating lobe liners36US 5,197,863 AThe Nash Engineering Company · 1993
- Liquid ring pumps having rotating lobe liners with end walls29US 5,100,300 AThe Nash Engineering Company · 1992
- Locally powered water distillation system28US 7,340,879 B2DEKA Products Limited Partnership · 2008