F01B 7/16
Machines or engines with two or more pistons reciprocating within same cylinder
Official title: with pistons synchronously moving in tandem arrangement
F01B7/16 (Machines or engines with two or more pistons reciprocating within same cylinder) appears on 29 US grants and 34 published applications in this corpus.
Search patents in F01B- Granted patents
- 29
- Published applications
- 34
- Assignees
- 15
- Inventors
- 62
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 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 | 0 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 3 |
| 2013 | 1 | 4 |
| 2014 | 3 | 4 |
| 2015 | 3 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 3 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Compact tandem cylinder reciprocating engine for CO2 power generation28 Jan 2025US 12,209,553 B2Indian Institute of Science
- Multiple cylinder engine22 Nov 2022US 11,506,119 B2Impact Consulting and Engineering LLC
- Internal combustion engine with two working spaces of a cylinder1 Feb 2022US 11,236,670 B2
- Cylinder actuator28 Sep 2021US 11,131,192 B2Vanderbilt University
- Stirling cycle and linear-to-rotary mechanism systems, devices, and methods23 Mar 2021US 10,954,886 B2Cool Energy, Inc.
- Compact tandem cylinder reciprocating engine for co2 power generation26 Sep 2024US 2024/0318554 A1Indian Institute of Science
- Multiple cylinder engine6 Jan 2022US 2022/0003159 A1Impact Consulting and Engineering LLC
- Cylinder Actuator11 Feb 2021US 2021/0040852 A1Vanderbilt University
- Internal combustion engine with two working spaces of a cylinder4 Jun 2020US 2020/0173357 A1
- Motor capable of many different applications21 May 2020US 2020/0158240 A1
Most cited
By later US patents