F01C 3/025
Of intermeshing engagement type, i.e. with engagement of co-operating members similar to
Official title: {of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing}
F01C3/025 (Of intermeshing engagement type, i.e. with engagement of co-operating members similar to) appears on 43 US grants and 26 published applications in this corpus.
Search patents in F01C- Granted patents
- 43
- Published applications
- 26
- Assignees
- 14
- Inventors
- 31
- Latest grant
- 2 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 3 |
| 2006 | 0 | 3 |
| 2007 | 2 | 3 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 4 |
| 2018 | 1 | 1 |
| 2019 | 1 | 6 |
| 2020 | 3 | 0 |
| 2021 | 3 | 0 |
| 2022 | 3 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotary piston and cylinder device with single stator side2 Jan 2024US 11,859,495 B2Lontra Limited
- Rotary piston and cylinder with the rotor including a formation and bearing arrangement27 Dec 2022US 11,536,139 B2Lontra Limited
- Rotary piston and cylinder device with flared curved rotor surface6 Dec 2022US 11,519,268 B2Lontra Limited
- Rotary piston and cylinder device having a dish ringed rotor3 May 2022US 11,319,812 B2Lontra Limited
- Rotary piston and cylinder device28 Sep 2021US 11,131,193 B2Lontra Limited
- Rotary piston and cylinder device8 Aug 2019US 2019/0242258 A1Lontra Limited
- Rotary piston and cylinder device1 Aug 2019US 2019/0234215 A1Lontra Limited
- Rotary piston and cylinder device18 Jul 2019US 2019/0218911 A1Lontra Limited
- Rotary piston and cylinder device27 Jun 2019US 2019/0195071 A1Lontra Limited
- Rotary piston and cylinder device20 Jun 2019US 2019/0186264 A1Lontra Limited
Most cited
By later US patents
- Thread construction for rotary worm compression-expansion machines16US 4,179,250 AChicago Pneumatic Tool Company · 1979
- Toroidal hyper-expansion rotary engine, compressor, expander, pump and method15US 5,233,954 AMechanology, LLC · 1993
- Screw compressors14US 4,074,957 AMonovis B. V. · 1978
- Compressors and expansion machines of the single worm type12US 3,945,778 A1976
- Helicotoroidal vane rotary engine12US 5,474,043 AMallen Research Limited Partnership · 1995