Inventor · disambiguated record
Douglas L. Sprunger
Also filed as: SPRUNGER DOUGLAS · SPRUNGER DOUGLAS L · SPRUNGER DOUGLAS LYNN
8 granted patents·111 citations·filing 1997–2017
87Inventor score
Top patents by PatentIndex Score
8 records- 0194US10006432B2Dual coil ignition systemCUMMINS INC·Filed 2016·Granted Jun 26, 2018·10 cites·19 claims
- 0292US9429134B2Dual coil ignition systemCUMMINS INC·Filed 2014·Granted Aug 30, 2016·12 cites·20 claims
- 0391US6622711B1Ignition coil cassette assemblyDELPHI TECH INC·Filed 2002·Granted Sep 23, 2003·33 cites·9 claims
- 0483US5886476AMethod and apparatus for producing electrical dischargesGEN MOTORS CORP·Filed 1997·Granted Mar 23, 1999·31 cites·18 claims
- 0576US7778002B2Method and apparatus to reduce ring out in an ignition coil to allow for ion sense processingDELPHI TECH INC·Filed 2007·Granted Aug 17, 2010·8 cites·2 claims
- 0667US6666196B2Ignition system having improved spark-on-make blocking diode implementationDELPHI TECH INC·Filed 2002·Granted Dec 23, 2003·10 cites·11 claims
- 0759US6247465B1System and method for preventing spark-on-make in an internal combustion engine using manifold pressureDELPHI TECH INC·Filed 2000·Granted Jun 19, 2001·7 cites·28 claims
- 0835US10890156B2Method for determining a need for changing a spark plugWUESTENHAGEN DIRK·Filed 2017·Granted Jan 12, 2021·0 cites·5 claims
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