F04C 2/3568
With axially movable vanes
Official title: {with axially movable vanes}
F04C2/3568 (With axially movable vanes) appears on 17 US grants and 15 published applications in this corpus.
Search patents in F04C- Granted patents
- 17
- Published applications
- 15
- Assignees
- 12
- Inventors
- 22
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 4 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum pump to generate a negative pressure6 May 2025US 12,292,050 B1Gebr. Becker GmbH
- Pump including a rotor and a plurality of blocking device elements for blocking a pump duct21 Sep 2021US 11,125,228 B2Watson-Marlow Limited
- Pump24 Aug 2021US 11,098,713 B2Watson-Marlow Limited
- Pump and blocking element10 Nov 2020US 10,830,234 B2Watson-Marlow Limited
- Apparatus for driving fluid having a rotating cam and rocker arm8 May 2018US 9,964,109 B2Albert's Generator Services Inc.
- Sinusoidal pump with blocking slide, and production method14 May 2026US 2026/0132788 A1Watson Marlow GmbH - MasoSine Division
- Variable displacement pump with axial displacement of the vanes27 Dec 2018US 2018/0372094 A1Universidade De Aveiro
- Pump25 Oct 2018US 2018/0306183 A1Watson-Marlow Limited
- Pump and Blocking Element18 Oct 2018US 2018/0298897 A1Watson-Marlow Limited
- Pump and Blocking Device27 Sep 2018US 2018/0274538 A1Watson-Marlow Limited
Most cited
By later US patents
- Rotary fluid pump23US 4,575,324 ASine Pumps, N.V. · 1986
- Mixing apparatus14US 6,354,729 B1Tecexec Limited · 2002
- Rotary pump having a drive shaft releasably connected to the rotor11US 5,980,225 ASundstrand Fluid Handling Corporation · 1999
- Rotary displacement pump comprising scraper and guide of the scraper7US 7,462,022 B2Maso Process-Pumpen GmbH · 2008
- Vacuum pump to generate a negative pressure6US 12,292,050 B1Gebr. Becker GmbH · 2025