F04D 1/10
With means for changing the flow-path through the stages
Official title: with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side loads
F04D1/10 (With means for changing the flow-path through the stages) appears on 22 US grants and 19 published applications in this corpus.
Search patents in F04D- Granted patents
- 22
- Published applications
- 19
- Assignees
- 22
- Inventors
- 62
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 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 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 1 | 4 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve pump unit2 Jun 2026US 12,644,458 B2Vitesco Technologies GmbH
- Shift pump flow scheme7 Oct 2025US 12,439,569 B2Cooper-Standard Automotive Inc.
- Multi-switch pump assembly29 Jul 2025US 12,372,097 B2Cooper-Standard Automotive Inc.
- Fluid pump systems27 Aug 2024US 12,071,898 B2Hamilton Sundstrand Corporation
- Multi-switch pump assembly9 Apr 2024US 11,953,018 B2Cooper-Standard Automotive Inc.
- A volute module30 Jul 2026US 2026/0218723 A1Grundfos Holding A/S
- Modular Pump System16 Jul 2026US 2026/0201890 A1Dajustco IP Holdings Inc.
- Valve Pump Unit11 Sep 2025US 2025/0283470 A1Vitesco Technologies GmbH
- Multi-switch pump assembly1 Aug 2024US 2024/0254997 A1Cooper-Standard Automotive Inc.
- Shift pump flow scheme14 Dec 2023US 2023/0403833 A1Cooper-Standard Automotive Inc.
Most cited
By later US patents
- One-piece pumping device with ambivalent operation72US 4,229,142 ALe Materiel Telephonique · 1980
- Recirculating pump for electrical submersible pump system66US 5,845,709 ABaker Hughes Incorporated · 1998
- Pump21US 6,167,724 AThe BOC Group, Inc. · 2001
- Multi-switch pump assembly19US 11,953,018 B2Cooper-Standard Automotive Inc. · 2024
- High-pressure high-temperature coal slurry centrifugal pump and let-down turbine17US 4,893,986 ARockwell International Corporation · 1990