ED

Eric J. Defenderfer

General Motors: 6 patents #2,601 of 18,328Top 15%
TE Tula Etechnology: 2 patents #49 of 93Top 55%
Overall (All Time): #821,953 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10941722 Method and apparatus for determining optimum skip fire firing profile Mark A. Shost, Louis J. Serrano, Steven E. Carlson, Vijay Srinivasan, Nitish J. Wagh +4 more 2021-03-09
10380988 Body mounted vehicle noise cancellation system Frank C. Valeri, Scott M. Reilly 2019-08-13
10247121 Method and apparatus for determining optimum skip fire firing profile Mark A. Shost, Louis J. Serrano, Steven E. Carlson, Vijay Srinivasan, Nitish J. Wagh +4 more 2019-04-02
10054167 Driveshaft with two-stage stiffness Paul A. Piorkowski, Michael J. Grimmer, Mark A. Gehringer, Stephanie A. Erntser, Stephen H. Miller 2018-08-21
9416815 Driveshaft with two-stage stiffness Michael J. Grimmer, Mark A. Gehringer, Stephanie A. Ernster, Stephen H. Miller 2016-08-16
7225783 Engine motion active control Frederick P. Hohnstadt, Steven A. Tervo, Eric N. Jacobson, Brian E. Ferrari, Donald R. Elzinga, Jr. +3 more 2007-06-05