F02K 5/026
Free-piston engines
Official title: {free-piston engines}
F02K5/026 (Free-piston engines) appears on 3 US grants and 1 published applications in this corpus.
Search patents in F02K- Granted patents
- 3
- Published applications
- 1
- Assignees
- 0
- Inventors
- 2
- Latest grant
- 23 Jun 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
By publication year.
Recent patents
- Free piston engine using exhaust gas for providing increased thrust to an aircraft turbine engine23 Jun 2015US 9,062,601 B1
- Modular engine units including turbine engine with combustion mediating hub4 Jun 2013US 8,453,428 B1
- Combining a series of more efficient engines into a unit, or modular units10 May 2011US 7,937,945 B2
Most cited
By later US patents
- Combining a series of more efficient engines into a unit, or modular units12US 7,937,945 B22011
- Modular engine units including turbine engine with combustion mediating hub8US 8,453,428 B12013
- Free piston engine using exhaust gas for providing increased thrust to an aircraft turbine engine1US 9,062,601 B12015