F04D 29/506
Especially adapted for liquid pumps
Official title: {especially adapted for liquid pumps}
F04D29/506 (Especially adapted for liquid pumps) appears on 12 US grants and 8 published applications in this corpus.
Search patents in F04D- Granted patents
- 12
- Published applications
- 8
- Assignees
- 7
- Inventors
- 20
- Latest grant
- 12 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reversible pump-turbine installation12 Apr 2022US 11,300,093 B2
- Drain pump for laundry treating apparatus21 Jul 2020US 10,718,081 B2LG Electronics Inc.
- Control of clutched device using magnetic force from motor2 Jun 2020US 10,670,021 B2Litens Automotive Partnership
- Bidirectional hydraulic pump2 Aug 2005US 6,923,617 B2Fagor, S.Coop.
- Directional changeover pump23 Jan 1996US 5,486,089 ADaewoo Electronics Co., Ltd.
- Flow Reversing Pump Apparatus23 Jul 2026US 2026/0210323 A1
- Pumping arrangement in an electrical submersible pump26 Feb 2026US 2026/0055771 A1
- Pump and reversible pump-turbine21 Mar 2024US 2024/0093665 A1BHE Turbomachinery, LLC
- Improved Pump and Reversible Pump-Turbine20 Apr 2023US 2023/0123425 A1BHE Turbomachinery, LLC
- Improved Reversible Pump-Turbine Installation20 Jun 2019US 2019/0186458 A1
Most cited
By later US patents
- Electrohydraulic energy converter for cardiac assist devices and artificial hearts193US 5,346,458 A1994
- Dual volute molten metal pump and selective outlet discriminating means150US 4,786,230 A1988
- Direction-selectable sending-out pump27US 4,728,260 AMaruko Keihouki Kabushiki Kaisha · 1988
- Turbine pump14US 4,091,644 AGeneral Electric Company · 1978
- Liquid pump10US 4,792,282 A1988