F04D 13/046
The fluid driving means being a hydraulic motor of the positive displacement
Official title: {the fluid driving means being a hydraulic motor of the positive displacement type}
F04D13/046 (The fluid driving means being a hydraulic motor of the positive displacement) appears on 24 US grants and 19 published applications in this corpus.
Search patents in F04D- Granted patents
- 24
- Published applications
- 19
- Assignees
- 20
- Inventors
- 54
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 4 |
| 2022 | 0 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Swimming machine14 Apr 2026US 12,599,825 B2Lighthouse Pools
- Overspeed safeguards in hydraulically controlled fuel boost pump14 Oct 2025US 12,442,397 B2Eaton Intelligent Power Limited
- Fuel pump driven by a variable displacement motor for aerial refueling operation1 Apr 2025US 12,264,678 B2Federal Industries, Inc.
- System for distributing particulate material from an agricultural machine26 Mar 2024US 11,939,982 B2CNH Industrial America LLC
- Fuel pump driven by a variable displacement motor for aerial refueling operation9 Jan 2024US 11,867,185 B2Federal Industries, Inc.
- Fuel Pump Driven by a Variable Displacement Motor for Aerial Refueling Operation28 Mar 2024US 2024/0102476 A1Federal Industries, Inc.
- Pump system for liquid transport tank8 Feb 2024US 2024/0044335 A1
- Swimming machine1 Jun 2023US 2023/0166170 A1Lighthouse Pools
- Overspeed safeguards in hydraulically controlled fuel boost pump1 Dec 2022US 2022/0381267 A1Eaton Intelligent Power Limited
- Fuel Pump Driven by a Variable Displacement Motor for Aerial Refueling Operation3 Nov 2022US 2022/0349406 A1Federal Industries, Inc.
Most cited
By later US patents
- Fluid motor driven blood pump236US 5,145,333 AThe Cleveland Clinic Foundation · 1992
- Pumping system selectably operable as a fire pump or a hydraulic pump16US 4,786,239 AHale Fire Pump Company · 1988
- Hydraulic control valve for fuel pumping system11US 4,992,027 AAble Corporation · 1991
- Dewatering pump assembly having a heat exchanger10US 3,957,402 A1976
- Dewatering pump assembly9US 3,957,403 A1976