F01C 3/02
The axes being arranged at an angle of 90 degrees
Official title: the axes being arranged at an angle of 90 degrees
F01C3/02 (The axes being arranged at an angle of 90 degrees) appears on 102 US grants and 65 published applications in this corpus.
Search patents in F01C- Granted patents
- 102
- Published applications
- 65
- Assignees
- 25
- Inventors
- 92
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 2 |
| 2003 | 5 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 7 |
| 2006 | 2 | 8 |
| 2007 | 5 | 3 |
| 2008 | 1 | 3 |
| 2009 | 3 | 5 |
| 2010 | 3 | 7 |
| 2011 | 1 | 1 |
| 2012 | 3 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 4 |
| 2018 | 1 | 3 |
| 2019 | 2 | 6 |
| 2020 | 4 | 2 |
| 2021 | 3 | 1 |
| 2022 | 5 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- External combustion rotary engine4 Jun 2024US 12,000,287 B2
- Rotary piston and cylinder device with single stator side2 Jan 2024US 11,859,495 B2Lontra Limited
- Air-fuel system for a circulating piston engine8 Aug 2023US 11,719,187 B2WB Development Company, LLC
- Sliding vane fluid pump27 Jun 2023US 11,686,200 B2Delphi Technologies IP Limited
- Rotary piston and cylinder with the rotor including a formation and bearing arrangement27 Dec 2022US 11,536,139 B2Lontra Limited
- Concentric rotary machine5 Sep 2024US 2024/0295174 A1
- External combustion rotary engine3 Aug 2023US 2023/0243261 A1
- Air-fuel system for a circulating piston engine15 Sep 2022US 2022/0290629 A1WB Development Company, LLC
- Sliding vane fluid pump26 May 2022US 2022/0162943 A1Delphi Technologies IP Limited
- Circulating Piston Engine25 Mar 2021US 2021/0087970 A1WB Development Company, LLC
Most cited
By later US patents
- Variable geometry toroidal engine27US 6,546,908 B1VGT Technologies, Inc. · 2003
- Toroidal engine with variable displacement volume21US 7,341,041 B2VGT Technologies, Inc. · 2008
- 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
- Orbital engine15US 7,059,294 B2Wright Innovations, LLC · 2006