F04D 1/003
Radial-flow pumps: having contrarotating parts
Official title: {Having contrarotating parts}
F04D1/003 (Radial-flow pumps: having contrarotating parts) appears on 20 US grants and 21 published applications in this corpus.
Search patents in F04D- Granted patents
- 20
- Published applications
- 21
- Assignees
- 16
- Inventors
- 30
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 4 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 4 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Twin pump unit casing having motor mounted touchscreens29 Jul 2025US 12,372,091 B2S. A. Armstrong Limited
- Removable mechanical circulatory support for short term use6 Aug 2024US 12,053,624 B2
- Dual body variable duty performance optimizing pump unit23 Apr 2024US 11,965,512 B2S. A. Armstrong Limited
- Sensing device, system and method for a pump13 Feb 2024US 11,898,577 B2Weir Minerals Australia Ltd.
- Heat exchange module and serial pump thereof7 Nov 2023US 11,809,243 B2Cooler Master Co., Ltd.
- Twin Pump Unit Casing Having Motor Mounted Touchscreens23 Oct 2025US 2025/0327456 A1S. A. Armstrong Limited
- Removable mechanical circulatory support for short term use6 Mar 2025US 2025/0073444 A1
- Dual Body Variable Duty Performance Optimizing Pump Unit11 Jul 2024US 2024/0229800 A1S. A. Armstrong Limited
- Dual Body Variable Duty Performance Optimizing Pump Unit5 Oct 2023US 2023/0313802 A1S. A. Armstrong Limited
- A Sensing Device, System And Method For A Pump17 Nov 2022US 2022/0364565 A1Weir Minerals Australia Ltd.
Most cited
By later US patents
- Continuous flow rotary pump251US 6,247,892 B1IMPSA International Inc. · 2001
- Pump or compressor unit27US 5,417,544 AFramo Developments (UK) Limited · 1995
- Removable mechanical circulatory support for short term use15US 11,116,959 B22021
- Heat exchange module and serial pump thereof9US 10,198,046 B2Cooler Master Co., Ltd. · 2019
- Pump with cutting wheel and pre-cutter8US 10,054,136 B2Brinkmann Pumpen K. H. Brinkmann GmbH & Co. KG · 2018