F04C 2/3448
With axially movable vanes
Official title: {with axially movable vanes}
F04C2/3448 (With axially movable vanes) appears on 46 US grants and 52 published applications in this corpus.
Search patents in F04C- Granted patents
- 46
- Published applications
- 52
- Assignees
- 33
- Inventors
- 107
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 9 |
| 2016 | 1 | 17 |
| 2017 | 12 | 8 |
| 2018 | 12 | 4 |
| 2019 | 4 | 0 |
| 2020 | 2 | 1 |
| 2021 | 2 | 3 |
| 2022 | 0 | 1 |
| 2023 | 2 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features7 Oct 2025US 12,435,717 B2
- Pump having rotor member with axially sliding vanes and a one-way check valve2 Jul 2024US 12,025,132 B1
- Rotary compressor including a plurality of recessed portions for retaining lubricating oil16 Apr 2024US 11,959,480 B2Fujitsu General Limited
- Vane pump16 Apr 2024US 11,959,482 B2KYB Corporation
- Rotary compressor including a plurality of recessed portions for retaining lubricating oil23 Jan 2024US 11,879,459 B2Fujitsu General Limited
- Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features4 Dec 2025US 2025/0369440 A1
- Rotary compressor7 Nov 2024US 2024/0369059 A1LG Electronics Inc.
- Sliding-vane pump2 May 2024US 2024/0141893 A1Valeo Powertrain GmbH
- Sliding-pocket variable-displacement pump with compensation chambers4 Jan 2024US 2024/0003346 A1Ford Global Technologies, LLC
- High pressure variable vane pump with vane pins8 Jun 2023US 2023/0175504 A1Stackpole International Engineered Products, Ltd.
Most cited
By later US patents
- Rotary electrohydraulic device with axially sliding vanes25US 4,492,541 ACompagnie de Construction Mecanique Sulzer · 1985
- Hydraulic motor and hydrostatic power transmission using such motor22US 4,503,928 ACompagnie de Construction Mecanique Sulzer · 1985
- Lubrication of journal bearing during clockwise and counter-clockwise rotation17US 10,208,624 B2United Technologies Corporation · 2019
- Variable displacement vane pump14US 4,439,117 AThe Bendix Corporation · 1984
- Pump with mechanical seal assembly7US 9,617,994 B2Delaware Capital Formation, Inc. · 2017