F04D 5/003
Of multistage type
Official title: {of multistage type}
F04D5/003 (Of multistage type) appears on 71 US grants and 50 published applications in this corpus.
Search patents in F04D- Granted patents
- 71
- Published applications
- 50
- Assignees
- 50
- Inventors
- 134
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 4 |
| 2008 | 0 | 4 |
| 2009 | 3 | 3 |
| 2010 | 3 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 6 |
| 2013 | 0 | 3 |
| 2014 | 0 | 2 |
| 2015 | 4 | 2 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Configurable bi-directional airflow fan21 Apr 2026US 12,607,203 B2Cisco Technology, Inc.
- Configurable bi-directional airflow fan28 Jan 2025US 12,209,596 B2Cisco Technology, Inc.
- Integrated pumps2 Apr 2024US 11,946,471 B2Hamilton Sundstrand Corporation
- Single wheel multi-stage radially-layered regenerative pump21 Nov 2023US 11,821,429 B2Eaton Intelligent Power Limited
- Surge protection for a multistage compressor26 Sep 2023US 11,768,014 B2Carrier Corporation
- Fuel system23 Jul 2026US 2026/0210293 A1ROLLS-ROYCE plc
- Configurable bi-directional airflow fan20 Feb 2025US 2025/0059984 A1Cisco Technology, Inc.
- Configurable bi-directional airflow fan28 Mar 2024US 2024/0102491 A1Cisco Technology, Inc.
- Integrated pumps23 Nov 2023US 2023/0374991 A1Hamilton Sundstrand Corporation
- Surge protection for a multistage compressor16 Jun 2022US 2022/0186985 A1Carrier Corporation
Most cited
By later US patents
- Sealless integral-motor pump with regenerative impeller disk131US 6,280,157 B1Flowserve Management Company · 2001
- Hermetically sealed magnetic drive pump39US 5,525,039 ARoy E. Roth Company · 1996
- Lateral channel pump35US 4,408,952 A1983
- Unit for delivering fuel from the fuel tank to the internal combustion engine of a motor vehicle33US 5,338,151 ARobert Bosch GmbH · 1994
- Regenerative rotodynamic machines27US 4,306,833 ACompair Industrial Limited · 1981