Steven F. Johnson

SP Spx: 1 patents #2 of 14Top 15%

📍 Kalamazoo, MI: #23 of 72 inventorsTop 35%

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

Overall (1997): #75,246 of 185,788Top 45%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5631831	Diagnosis method for vehicle systems	John A. Bird, Martin Franz, Harry M. Gilbert, Michael Shafer	1997-05-20