F04D 11/00
Non-positive-displacement pumps: other rotary non-positive-displacement pumps
Official title: Other rotary non-positive-displacement pumps (pumping installations or systems F04D13/00)
F04D11/00 (Non-positive-displacement pumps: other rotary non-positive-displacement pumps) appears on 36 US grants and 22 published applications in this corpus.
Search patents in F04D- Granted patents
- 36
- Published applications
- 22
- Assignees
- 18
- Inventors
- 66
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 2 |
| 2022 | 3 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Multi-phase rotor, system and method for maintaining a stable vapour cavity26 Aug 2025US 12,398,725 B2Cre 8 Technologies Limited
- Impeller wake vortex dissipation device under stall condition of mixed flow pump13 Feb 2024US 11,898,572 B2Jiangsu University
- Blade and pump impeller assembly for a dishwasher13 Jun 2023US 11,672,402 B2Whirlpool Corporation
- Circulating water system for intensive aquaculture11 Apr 2023US 11,622,545 B1
- Pump assemblies configured for drive and pump end interchangeability9 Aug 2022US 11,408,415 B2Rotary Manufacturing, LLC
- Air handling unit for use with an air conditioning system18 Dec 2025US 2025/0383102 A1Carrier Corporation
- A Multi-Phase Rotor, System and Method for Maintaining a Stable Vapour Cavity16 Jan 2025US 2025/0020136 A1Cre 8 Technologies Limited
- Rotating apparatus, motor, and pump20 Jun 2024US 2024/0200575 A1National University Corporation Saitama University
- Impeller wake vortex dissipation device under stall condition of mixed flow pump18 Jan 2024US 2024/0018969 A1Jiangsu University
- Blade and pump impeller assembly for a dishwasher6 Oct 2022US 2022/0313058 A1Whirlpool Corporation
Most cited
By later US patents
- Medical fluid pump167US 5,578,012 ADEKA Products Limited Partnership · 1996
- Magnet ball pump43US 4,642,036 A1987
- Flexible membrane sealless centrifugal pump38US 5,193,977 A1993
- Hall measurement system with rotary magnet21US 9,041,389 B2International Business Machines Corporation · 2015
- Solenoid-actuated centrifugal pump and method17US 4,381,181 A1983