F04D 1/14
Pumps raising fluids by centrifugal force within a conical rotary bowl with
Official title: Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis
F04D1/14 (Pumps raising fluids by centrifugal force within a conical rotary bowl with) appears on 44 US grants and 27 published applications in this corpus.
Search patents in F04D- Granted patents
- 44
- Published applications
- 27
- Assignees
- 29
- Inventors
- 85
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 4 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 2 | 3 |
| 2018 | 2 | 1 |
| 2019 | 0 | 3 |
| 2020 | 0 | 4 |
| 2021 | 5 | 1 |
| 2022 | 1 | 2 |
| 2023 | 3 | 0 |
| 2024 | 4 | 0 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Centrifugal pump pet water fountain14 Oct 2025US 12,439,887 B2Radio Systems Corporation
- Centrifugal pump pet water fountain23 Sep 2025US 12,419,274 B1Radio Systems Corporation
- Subsea pump system with process lubricated bearings10 Dec 2024US 12,163,525 B2FSubsea AS
- Centrifugal pump pet water fountain12 Nov 2024US 12,137,677 B1Radio Systems Corporation
- Overflow vortex transfer system26 Mar 2024US 11,939,993 B2Pyrotek, Inc.
- Centrifugal pump pet water fountain1 May 2025US 2025/0134063 A1Radio Systems Corporation
- Overflow vortex transfer system17 Mar 2022US 2022/0082101 A1Pyrotek, Inc.
- Subsea pump system with process lubricated bearings10 Feb 2022US 2022/0042512 A1FSubsea AS
- Centrifugal pump pet water fountain15 Jul 2021US 2021/0212286 A1Radio Systems Corporation
- Liquid atomization device and air cleaner using same17 Dec 2020US 2020/0391232 A1Panasonic Intellectual Property Management Go,, Ltd.
Most cited
By later US patents
- Riserless transfer pump and mixer/pre-melter for molten metal applications67US 9,234,520 B2Pyrotek, Inc. · 2016
- Overflow vortex transfer system52US 9,506,346 B2Pyrotek, Inc. · 2016
- Installation for mixing and separating two non-miscible liquids, inter alia for liquid-liquid extraction36US 4,235,602 AKrebs & Cie · 1980
- Mineral processing screen separator22US 5,238,117 AKemix(Proprietary) Limited · 1993
- Fluid machines21US 4,143,999 AWeir Pumps Limited · 1979