Marc William Heinzman

General Motors: 1 patents #96 of 495Top 20%

📍 Frankenmuth, MI: #2 of 6 inventorsTop 35%

🗺 Michigan: #1,023 of 4,492 inventorsTop 25%

Overall (1997): #110,384 of 185,788Top 60%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5669634	Energy absorber for motor vehicle steering column	Michael P. Anspaugh, Richard K. Riefe, David Michael Byers	1997-09-23