F04D 29/188
Specially for regenerative pumps
Official title: {specially for regenerative pumps}
F04D29/188 (Specially for regenerative pumps) appears on 162 US grants and 107 published applications in this corpus.
Search patents in F04D- Granted patents
- 162
- Published applications
- 107
- Assignees
- 79
- Inventors
- 278
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 4 |
| 2002 | 16 | 7 |
| 2003 | 13 | 10 |
| 2004 | 4 | 9 |
| 2005 | 3 | 6 |
| 2006 | 7 | 6 |
| 2007 | 5 | 9 |
| 2008 | 3 | 5 |
| 2009 | 5 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 1 |
| 2012 | 4 | 5 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 3 | 4 |
| 2016 | 1 | 3 |
| 2017 | 3 | 6 |
| 2018 | 2 | 4 |
| 2019 | 6 | 4 |
| 2020 | 7 | 3 |
| 2021 | 1 | 3 |
| 2022 | 5 | 3 |
| 2023 | 2 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Side-channel machine (compressor, vacuum pump or blower) having an extraction duct in the stripper29 Sep 2026US 12,747,732 B2Gardner Denver Deutschland GmbH
- Low noise blower7 Apr 2026US 12,595,800 B1Hyundai Motor Company
- Regenerative blower17 Jun 2025US 12,331,749 B2Fisher & Paykel Healthcare Limited
- Side-channel machine (compressor, vacuum pump or blower) having an extraction duct in the stripper3 Sep 2024US 12,078,179 B2Gardner Denver Deutschland GmbH
- Blade rotor and fluid working machine comprising such a rotor2 Jul 2024US 12,025,146 B2Fpz S.P.A.
- Regenerative blower15 May 2025US 2025/0154956 A1Fisher & Paykel Healthcare Limited
- Device for anode gas recirculation in a fuel cell system13 Mar 2025US 2025/0087727 A1Pierburg GmbH
- Side-channel machine (compressor, vacuum pump or blower) having an extraction duct in the stripper26 Dec 2024US 2024/0426304 A1Gardner Denver Deutschland GmbH
- Fluid pump and impeller thereof13 Jul 2023US 2023/0220849 A1Delphi Technologies IP Limited
- Side-channel machine (compressor, vacuum pump or blower) having an extraction duct in the stripper22 Jun 2023US 2023/0193907 A1Gardner Denver Deutschland GmbH
Most cited
By later US patents
- Self-deploying axial-flow pump introduced intravascularly for temporary cardiac support480US 6,533,716 B12003
- Regenerative fuel pump48US 5,702,229 AWalbro Corporation · 1997
- Regenerative fuel pump43US 5,257,916 AWalbro Corporation · 1993
- Regenerative pump and method of manufacturing impeller31US 5,407,318 ANippondenso Co., Ltd. · 1995
- Impeller for a regenerative turbine fuel pump29US 5,762,469 AFord Motor Company · 1998