Inventor · disambiguated record
Rolf Lappan
Also filed as: LAPPAN ROLF
8 granted patents·7 pending applications·49 citations·filing 2003–2014
84Inventor score
Top patents by PatentIndex Score
15 records- 0187US9334978B2Valve device for a hydraulic circuit, and oil-pump regulating arrangementLAPPAN ROLF·Filed 2012·Granted May 10, 2016·11 cites·15 claims
- 0277US9127780B2Solenoid valveSCHNELKER FRANZ-JOSEF·Filed 2011·Granted Sep 8, 2015·7 cites·11 claims
- 0372US8387383B2Ambient-air pulsed valve for internal combustion engines equipped with a turbochargerTHIERY MICHAEL·Filed 2006·Granted Mar 5, 2013·11 cites·4 claims
- 0466US6840502B2Flap valve for fuel aggregatesPIERBURG GMBH·Filed 2003·Granted Jan 11, 2005·13 cites·9 claims
- 0558US10094253B2Valve device for a hydraulic circuit and oil pump regulating arrangementPIERBURG GMBH·Filed 2013·Granted Oct 9, 2018·2 cites·13 claims
- 0656US9133728B2Fluid pressure reversing valveBUSE WERNER·Filed 2011·Granted Sep 15, 2015·2 cites·6 claims
- 0755US6920898B2High-pressure valvePIERBURG GMBH·Filed 2003·Granted Jul 26, 2005·3 cites·18 claims
- 0844US2009257924A1Device for the reduction of nitrogen oxides in the exhaust gas of internal combustion enginesPIERBURG GMBH·Filed 2007·Application pending·0 cites
- 0943US9803772B2Valve device for a hydraulic circuit and oil pump control apparatusPIERBURG GMBH·Filed 2014·Granted Oct 31, 2017·0 cites·10 claims
- 1038US2015139840A1Valve device for a hydraulic circuit, and oil pump control assemblyPIERBURG GMBH·Filed 2013·Application pending·0 cites
- 1138US2015285395A1Flow casing for an oil valvePIERBURG GMBH·Filed 2013·Application pending·0 cites
- 1235US2013264506A1Solenoid valveSCHNELKER FRANZ-JOSEF·Filed 2011·Application pending·0 cites
- 1335US2013284960A1Solenoid valveSCHNELKER FRANZ-JOSEF·Filed 2011·Application pending·0 cites
- 1434US2013264507A1Solenoid valveSCHNELKER FRANZ-JOSEF·Filed 2011·Application pending·0 cites
- 1532US2004036052A1Ball valvePIERBURG GMBH·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →