F05D 2250/51
Inlet
F05D2250/51 (Inlet) appears on 737 US grants and 820 published applications in this corpus.
Search patents in F05D- Granted patents
- 737
- Published applications
- 820
- Assignees
- 346
- Inventors
- 1,779
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 3 |
| 2002 | 4 | 9 |
| 2003 | 7 | 2 |
| 2004 | 4 | 5 |
| 2005 | 2 | 11 |
| 2006 | 7 | 9 |
| 2007 | 4 | 15 |
| 2008 | 9 | 10 |
| 2009 | 15 | 17 |
| 2010 | 3 | 17 |
| 2011 | 9 | 15 |
| 2012 | 13 | 24 |
| 2013 | 14 | 27 |
| 2014 | 18 | 29 |
| 2015 | 17 | 47 |
| 2016 | 23 | 63 |
| 2017 | 42 | 41 |
| 2018 | 43 | 66 |
| 2019 | 61 | 63 |
| 2020 | 70 | 84 |
| 2021 | 58 | 72 |
| 2022 | 73 | 56 |
| 2023 | 61 | 48 |
| 2024 | 55 | 45 |
| 2025 | 33 | 23 |
| 2026 | 13 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump unit for a centrifugal pump and a centrifugal pump18 Aug 2026US 12,710,049 B2Levitronix LLC
- Flow grid and ambient air purification device4 Aug 2026US 12,697,572 B2MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Fluid cooler installation and method for turbofan engine26 May 2026US 12,637,976 B2Pratt & Whitney Canada Corp.
- Open rotor nose cone ram air heat exchanger with exhaust of cooling air through static structure5 May 2026US 12,618,367 B2Rtx Corporation
- Inlet nozzle assembly and turbomachine with an impeller and an inlet nozzle assembly21 Apr 2026US 12,607,200 B2ebm-Papst St.Georgen GmbH & Co. KG
- Gas turbine engine20 Aug 2026US 2026/0243199 A1General Electric Company
- Magnetic bearing hub and vacuum pump20 Aug 2026US 2026/0243264 A1
- Volute, fan and air conditioner30 Jul 2026US 2026/0218722 A1Gd Midea Air-Conditioning Equipment Co., Ltd.
- Pump system with electrically operated cooling device23 Jul 2026US 2026/0210364 A1Pfeiffer Vacuum Technology AG
- Variable inlet guide vane apparatus and systems and methods for calibrating the same23 Jul 2026US 2026/0210368 A1
Most cited
By later US patents
- Expandable impeller pump391US 7,393,181 B2Datascope Investment Corp. · 2008
- Expandable impeller pump296US 7,927,068 B2The Penn State Research Foundation · 2011
- System for reducing noise in a hydraulic fracturing fleet263US 9,587,649 B2U.S. Well Services, LLC · 2017
- Expandable impeller pump197US 8,376,707 B2The Penn State Research Foundation · 2013
- Method and apparatus for achieving power augmentation in gas turbines via wet compression161US 5,930,990 AThe Dow Chemical Company · 1999