F01B 3/0005
Having two or more sets of cylinders or pistons
Official title: {having two or more sets of cylinders or pistons}
F01B3/0005 (Having two or more sets of cylinders or pistons) appears on 77 US grants and 49 published applications in this corpus.
Search patents in F01B- Granted patents
- 77
- Published applications
- 49
- Assignees
- 27
- Inventors
- 86
- Latest grant
- 11 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 4 | 7 |
| 2006 | 5 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 7 |
| 2009 | 1 | 3 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 8 |
| 2013 | 1 | 2 |
| 2014 | 2 | 0 |
| 2015 | 4 | 3 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 4 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 3 | 1 |
| 2022 | 2 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Aircraft engine with opposed piston engine11 Jun 2024US 12,006,826 B2Hts LLC
- Opposed piston engine2 Aug 2022US 11,401,812 B2Hts LLC
- Cam-driven radial rotary engine incorporating an HCCI apparatus21 Jun 2022US 11,365,674 B2
- Hybrid engine19 Oct 2021US 11,149,629 B2Hts LLC
- Cam-driven radial rotary engine incorporating an HCCI apparatus13 Jul 2021US 11,060,450 B1
- Propulsion apparatus5 Jun 2025US 2025/0180042 A1
- Aircraft engine with opposed piston engine8 Dec 2022US 2022/0389818 A1Hts LLC
- Cam-driven radial rotary engine incorporating an hcci apparatus19 May 2022US 2022/0154633 A1
- Opposed piston engine27 Jan 2022US 2022/0025767 A1Hts LLC
- Hybrid engine22 Apr 2021US 2021/0115846 A1Hts LLC
Most cited
By later US patents
- Internal combustion engine and operating cycle therefor47US 4,635,590 A1987
- Multiple cylinder sinusoidal engine39US 4,090,478 A1978
- Piston engine assembly37US 6,397,794 B1R. Sanderson Management, Inc. · 2002
- Piston engine assembly34US 6,446,587 B1R. Sanderson Management, Inc. · 2002
- Swash plate internal combustion engine33US 4,285,303 A1981