F01B 1/04
Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders
Official title: with cylinders in V-arrangement
F01B1/04 (Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders) appears on 18 US grants and 13 published applications in this corpus.
Search patents in F01B- Granted patents
- 18
- Published applications
- 13
- Assignees
- 13
- Inventors
- 32
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- High-speed long-stroke reciprocating engine23 Sep 2025US 12,421,891 B1Saudi Arabian Oil Company
- Reciprocating-piston internal combustion engine22 Feb 2022US 11,255,261 B2Bayerische Motoren Werke Aktiengesellschaft
- Pressure controlled hydraulic engine11 May 2021US 11,002,296 B2
- Internal combustion engine17 Nov 2020US 10,837,282 B2
- Pressure controlled hydraulic engine31 Mar 2020US 10,605,082 B2Koko Krikor Katanjian
- Pressure controlled hydraulic engine16 Jul 2020US 2020/0224535 A1
- Two-stroke engine with improved performance6 Jun 2019US 2019/0170055 A1Tti (Macao Commercial Offshore) Limited
- Pressure controlled hydraulic engine19 Jul 2018US 2018/0202292 A1Koko Krikor Katanjian
- Internal combustion engine22 Feb 2018US 2018/0051563 A1
- Crankshaft having balance weight7 Sep 2017US 2017/0254388 A1Hyundai Motor Company
Most cited
By later US patents
- Compressed air engine36US 4,124,978 A1978
- Barrel type internal combustion engine25US 3,943,895 A1976
- Reciprocating multicylinder vee machines with secondary counterbalancers13US 4,683,849 A1987
- Motion translating mechanism10US 4,173,151 A1979
- V-type block of a crank circular slider mechanism and a cylinder liner, a group of the cylinder liner, mechanical equipment thereof2US 8,931,442 B2Beijing Sinocep Engine Technology Co., Ltd. · 2015