F04C 2/324
With vanes hinged to the inner member and reciprocating with respect to
Official title: with vanes hinged to the inner member and reciprocating with respect to the outer member
F04C2/324 (With vanes hinged to the inner member and reciprocating with respect to) appears on 11 US grants and 10 published applications in this corpus.
Search patents in F04C- Granted patents
- 11
- Published applications
- 10
- Assignees
- 6
- Inventors
- 32
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
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| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
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| 2000 | 0 | 0 |
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| 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 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vane pump featuring fluid lubrication for an impeller17 Mar 2026US 12,577,949 B2Schwäbische Hüttenwerke Automotive GmbH
- Hydraulic automatic transmission bicycle30 Jul 2024US 12,049,282 B2
- Compressor structure24 Oct 2023US 11,795,947 B2CH Creative Co., Ltd.
- Hydraulic automatic transmission bicycle31 May 2022US 11,345,439 B2
- Centrifugal suction-type hybrid vane fluid machine29 Dec 2020US 10,876,529 B2
- Vane pump featuring fluid lubrication for an impeller12 Dec 2024US 2024/0410364 A1Schwäbische Hüttenwerke Automotive GmbH
- Hydraulic automatic transmission bicycle25 Aug 2022US 2022/0266948 A1
- Compressor structure21 Apr 2022US 2022/0120273 A1CH Creative Co., Ltd.
- Hydraulic automatic transmission bicycle4 Jun 2020US 2020/0172199 A1
- Centrifugal suction-type hybrid vane fluid machine28 Feb 2019US 2019/0063435 A1
Most cited
By later US patents