Inventor
VIOLA MICHAEL B
US21 patents
⚠️ This page may combine multiple inventors who share the name “VIOLA MICHAEL B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS LLC
9 patentsUS11230997B1Jan 25, 2022
Method and system for operating a fuel vapor capture system of an air intake system of an internal combustion engine
GM GLOBAL TECH OPERATIONS LLC6 citations73
US10227903B2Mar 12, 2019
Machine lubricant additive distribution systems and methods
GM GLOBAL TECH OPERATIONS LLC5 citations72
US12494687B2Dec 9, 2025
Rotor assembly with a composite sleeve that is optimized for press-fit installation
GM GLOBAL TECH OPERATIONS LLC1 citations63
US10669904B2Jun 2, 2020
Machine lubricant additive distribution systems and methods
GM GLOBAL TECH OPERATIONS LLC1 citations62
US10428703B2Oct 1, 2019
Machine lubricant additive distribution systems and methods
GM GLOBAL TECH OPERATIONS LLC1 citations62
US12424892B2Sep 23, 2025
Stabilized core assembly for carbon fiber sleeved electric motor rotor
GM GLOBAL TECH OPERATIONS LLC0 citations61
US11639705B2May 2, 2023
Vapor capture element for an air intake system of an internal combustion engine
GM GLOBAL TECH OPERATIONS LLC0 citations61
US11499507B2Nov 15, 2022
Evaporative canister for an internal combustion engine
GM GLOBAL TECH OPERATIONS LLC0 citations61
US11466631B2Oct 11, 2022
Method and system for controlling an on-vehicle evaporative emission system
GM GLOBAL TECH OPERATIONS LLC1 citations61
GM GLOBAL TECH OPERATIONS INC
7 patentsUS7610750B2Nov 3, 2009
Method and apparatus for monitoring a urea injection system in an exhaust aftertreatment system
GM GLOBAL TECH OPERATIONS INC49 citations92
US7469531B2Dec 30, 2008
Method and apparatus to control injection of a reductant into an exhaust gas feedstream
GM GLOBAL TECH OPERATIONS INC19 citations92
US7216478B2May 15, 2007
Exhaust treatment diagnostic using a temperature sensor
GM GLOBAL TECH OPERATIONS INC22 citations92
US7426825B2Sep 23, 2008
Method and apparatus for urea injection in an exhaust aftertreatment system
GM GLOBAL TECH OPERATIONS INC35 citations89
US7926263B2Apr 19, 2011
Regeneration system and method for exhaust aftertreatment devices
GM GLOBAL TECH OPERATIONS INC17 citations84
US8006481B2Aug 30, 2011
Method and apparatus to selectively reduce NOx in an exhaust gas feedstream
GM GLOBAL TECH OPERATIONS INC10 citations83
US7591132B2Sep 22, 2009
Apparatus and method to inject a reductant into an exhaust gas feedstream
GM GLOBAL TECH OPERATIONS INC9 citations83