P

Inventor

GWIDT J MICHAEL

US23 patents
⚠️ This page may combine multiple inventors who share the name “GWIDT J MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS LLC

18 patents
US9650981B1May 16, 2017

Adjustment of measured oxygen storage capacity based on upstream O2 sensor performance

GM GLOBAL TECH OPERATIONS LLC25 citations86
US11661902B1May 30, 2023

Port-direct injection engine systems and methods using ethanol-gasoline fuels

GM GLOBAL TECH OPERATIONS LLC3 citations72
US10001073B2Jun 19, 2018

Systems and methods for multiple catalyst light off events during drive cycle

GM GLOBAL TECH OPERATIONS LLC4 citations69
US10823101B1Nov 3, 2020

System and method for learning an injector compensation

GM GLOBAL TECH OPERATIONS LLC3 citations68
US12384218B1Aug 12, 2025

Smart vehicle systems and control logic with tire change modes for vehicles with adjustable ride height suspensions

GM GLOBAL TECH OPERATIONS LLC1 citations61
US12140098B1Nov 12, 2024

Systems and methods for service regeneration of a particulate filter

GM GLOBAL TECH OPERATIONS LLC0 citations61
US11852089B1Dec 26, 2023

Systems and methods for improved catalytic converter performance during cold starts

GM GLOBAL TECH OPERATIONS LLC0 citations61
US11754013B1Sep 12, 2023

Enhanced minimum mass limit for direct injection engines

GM GLOBAL TECH OPERATIONS LLC0 citations58
US11686264B1Jun 27, 2023

Scavenging for particulate filter regeneration

GM GLOBAL TECH OPERATIONS LLC1 citations58
US11578677B1Feb 14, 2023

Method and system for diagnosing cold start emission reduction

GM GLOBAL TECH OPERATIONS LLC0 citations57
US11614042B1Mar 28, 2023

Compression ratio methods and systems for particulate filter regeneration

GM GLOBAL TECH OPERATIONS LLC0 citations56
US11466641B1Oct 11, 2022

Modifying PFI to DI ratio to mitigate engine knocking

GM GLOBAL TECH OPERATIONS LLC1 citations53
US12281622B1Apr 22, 2025

Fuel control system for internal combustion engine having multiple injection systems

GM GLOBAL TECH OPERATIONS LLC0 citations51
US12140092B1Nov 12, 2024

Methods and systems for controlling fuel injection

GM GLOBAL TECH OPERATIONS LLC0 citations51
US11773791B1Oct 3, 2023

Multi-pulse fuel injection systems and control logic for port fuel injection pulse monitoring in engine assemblies

GM GLOBAL TECH OPERATIONS LLC0 citations46
US11668259B1Jun 6, 2023

Port-direct injection engine methods and systems optimizing fuel economy with particulate control

GM GLOBAL TECH OPERATIONS LLC0 citations46
US12122354B2Oct 22, 2024

Method and system for controlling cold start emission reduction

GM GLOBAL TECH OPERATIONS LLC0 citations42
US11852091B1Dec 26, 2023

Idle mode for engines with port fueld injection (PFI) and direct injection (DI) fuel systems

GM GLOBAL TECH OPERATIONS LLC0 citations41

GM GLOBAL TECH OPERATIONS INC

4 patents

GWIDT J MICHAEL

1 patent