F04C 18/44
With vanes hinged to the inner member
Official title: with vanes hinged to the inner member
F04C18/44 (With vanes hinged to the inner member) appears on 19 US grants and 18 published applications in this corpus.
Search patents in F04C- Granted patents
- 19
- Published applications
- 18
- Assignees
- 10
- Inventors
- 32
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 1 |
| 2019 | 3 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 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
- Electric compressor system for vehicle31 May 2022US 11,346,345 B2Hyundai Motor Company
- Revolving outer body rotary vane compressor or expander4 Jun 2019US 10,309,222 B2Pars Maina Sanayi Ve Ticaret Limited Sirketi
- Rotary compressor having two cylinders19 Mar 2019US 10,233,929 B2Panasonic Intellectual Property Management Co., Ltd.
- Rotary compressor having two cylinders19 Mar 2019US 10,233,930 B2Panasonic Intellectual Property Management Co., Ltd.
- Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features4 Dec 2025US 2025/0369440 A1
- Rotary pump or motor with improved intake, exhaust, vane and bearingless sleeve features16 Mar 2023US 2023/0083167 A1
- Electric compressor system for vehicle29 Apr 2021US 2021/0123450 A1Hyundai Motor Company
- Rotary compressor having two cylinders11 Oct 2018US 2018/0291899 A1Panasonic Intellectual Property Management Co., Ltd.
- Rotary compressor having two cylinders15 Jun 2017US 2017/0167487 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Reversible pivoting vane rotary compressor for a valve-free oxygen concentrator41US 6,749,405 B22004
- Valve-free oxygen concentrator featuring reversible compressors27US 7,114,932 B12006
- Pivoting vane rotary compressor21US 6,371,745 B12002
- Vapor-compression evaporative air conditioning systems and components21US 6,427,453 B1The Texas A&M University System · 2002
- Vapor-compression evaporative air conditioning systems and components14US 6,684,658 B2The Texas A&M University System · 2004