Assignee
SPRINGER JOSEPH E
3 granted patents·3 pending applications·57 citations·filing 1987–2010
Top patents by PatentIndex Score
6 records- 0178US5275134ATwo stroke internal combustion engine having an intake piston adjacent each power pistonSPRINGER JOSEPH E·Filed 1993·Granted Jan 4, 1994·38 cites·13 claims
- 0264US7685975B2Internal combustion engine twin power unit having an oscillating cylinderSPRINGER JOSEPH E·Filed 2008·Granted Mar 30, 2010·5 cites·11 claims
- 0353US4805568ASwing valve for internal combustion enginesSPRINGER JOSEPH E·Filed 1987·Granted Feb 21, 1989·14 cites·17 claims
- 0442US2006180105A1Internal combustion engine with actuating oscillating cylindersSPRINGER JOSEPH E·Filed 2006·Application pending·0 cites
- 0540US2006180104A1Internal combustion engine with actuating oscillating cylindersSPRINGER JOSEPH E·Filed 2005·Application pending·0 cites
- 0638US2010147236A1Tandem twin power unit engine having an oscillating cylinderSPRINGER JOSEPH E·Filed 2010·Application pending·0 cites
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