F04D 29/2283
For reverse pumping action
Official title: {for reverse pumping action}
F04D29/2283 (For reverse pumping action) appears on 28 US grants and 30 published applications in this corpus.
Search patents in F04D- Granted patents
- 28
- Published applications
- 30
- Assignees
- 24
- Inventors
- 63
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 3 | 2 |
| 2023 | 1 | 2 |
| 2024 | 2 | 8 |
| 2025 | 4 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Configurable bi-directional airflow fan21 Apr 2026US 12,607,203 B2Cisco Technology, Inc.
- Control unit for operating a blood pump in different conveying modes10 Mar 2026US 12,569,667 B2Berlin Heart GmbH
- Reversing polarity of a pump on failure, and applications thereof3 Mar 2026US 12,565,893 B2Zoeller Pump Company, LLC
- Electrical submersible pump with single direction lubricant flow25 Nov 2025US 12,480,498 B2Baker Hughes Oilfield Operations LLC
- Method for performing priming of a submersible pump4 Nov 2025US 12,460,646 B2Xylem Europe GmbH
- Flow Reversing Pump Apparatus23 Jul 2026US 2026/0210323 A1
- Liquid delivery device4 Jun 2026US 2026/0151766 A1Sumitomo Bakelite Co., Ltd.
- Pumping arrangement in an electrical submersible pump26 Feb 2026US 2026/0055771 A1
- In-line pumping apparatus, system, and method for increasing liquid flow in gravity networks22 May 2025US 2025/0163918 A1Industrial Flow Solutions Operating, LLC
- Configurable bi-directional airflow fan20 Feb 2025US 2025/0059984 A1Cisco Technology, Inc.
Most cited
By later US patents
- Dishwasher having a wash liquid recirculation system77US 5,924,432 AWhirlpool Corporation · 1999
- Fully integrated magnetic micromotors and methods for their fabrication38US 5,710,466 AGeorgia Tech Research Corporation · 1998
- In-line pumping apparatus, system and method for increasing liquid flow in gravity networks28US 11,982,280 B2Industrial Flow Solutions Operating, LLC · 2024
- Fully integrated magnetic micromotors and methods for their fabrication22US 5,909,069 AGeorgia Tech Research Corporation · 1999
- Pump impeller15US 4,355,954 AMaytag Corporation · 1982