F04C 18/3448
With axially movable vanes
Official title: {with axially movable vanes}
F04C18/3448 (With axially movable vanes) appears on 25 US grants and 29 published applications in this corpus.
Search patents in F04C- Granted patents
- 25
- Published applications
- 29
- Assignees
- 18
- Inventors
- 78
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 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 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 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 | 0 | 3 |
| 2016 | 1 | 5 |
| 2017 | 5 | 6 |
| 2018 | 6 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 2 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Sliding vane rotary pump21 Apr 2026US 12,607,187 B2Busch Produktions GmbH
- Moving wall multiphase compressor-pump-expander system21 Apr 2026US 12,607,188 B1
- Compressor and air conditioner9 Dec 2025US 12,492,699 B2Daikin Industries, Ltd.
- Rotary compressor and home appliance including same28 Oct 2025US 12,454,954 B2Samsung Electronics Co., Ltd.
- Rotary compressor and refrigeration cycle apparatus18 Jun 2026US 2026/0168496 A1Carrier Japan Corporation
- 2-cylinder rotary compressor15 Jan 2026US 2026/0016010 A1Daikin Industries, Ltd.
- Improved Sliding Vane Rotary Pump8 Jan 2026US 2026/0009385 A1Busch Produktions GmbH
- Compressor31 Jul 2025US 2025/0243862 A1LG Electronics Inc.
- Compressor and air conditioner6 Feb 2025US 2025/0043783 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Two-stage rotary compressor27US 4,553,903 A1985
- Two-stage rotary compressor25US 4,460,319 A1984
- Pump with mechanical seal assembly7US 9,617,994 B2Delaware Capital Formation, Inc. · 2017
- Cyclothermic converter vane pump and impeller system4US 5,626,032 A1997
- Vacuum pump having rotary compressing elements3US 9,255,579 B2Nabtesco Automotive Corporation · 2016