P

Inventor

DEFENDERFER ERIC J

US6 patents
⚠️ This page may combine multiple inventors who share the name “DEFENDERFER ERIC J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS LLC

3 patents
US9416815B2Aug 16, 2016

Driveshaft with two-stage stiffness

GM GLOBAL TECH OPERATIONS LLC8 citations79
US10054167B2Aug 21, 2018

Driveshaft with two-stage stiffness

GM GLOBAL TECH OPERATIONS LLC5 citations68
US10380988B1Aug 13, 2019

Body mounted vehicle noise cancellation system

GM GLOBAL TECH OPERATIONS LLC0 citations51

TULA TECHNOLOGY INC

2 patents
US10247121B2Apr 2, 2019

Method and apparatus for determining optimum skip fire firing profile

TULA TECHNOLOGY INC24 citations93
US10941722B2Mar 9, 2021

Method and apparatus for determining optimum skip fire firing profile

TULA TECHNOLOGY INC0 citations61

GM GLOBAL TECH OPERATIONS INC

1 patent
US7225783B2Jun 5, 2007

Engine motion active control

GM GLOBAL TECH OPERATIONS INC32 citations84