Patrick G. Szymkowicz

General Motors: 1 patents #487 of 1,517Top 35%

📍 Shelby Charter Township, MI: #15 of 65 inventorsTop 25%

🗺 Michigan: #2,040 of 6,958 inventorsTop 30%

Overall (2025): #256,748 of 469,880Top 55%

Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
12338762	Exhaust gas treatment system for controlling hydrocarbon adsorption/desorption in hydrocarbon trap	Yuntao Gu, Wei Li, Calvin J. Thomas, Mingjie Tu	2025-06-24