John Campbell

SI Southwest Research Institute: 1 patents #14 of 68Top 25%

📍 Zionsville, IN: #19 of 51 inventorsTop 40%

🗺 Indiana: #640 of 2,560 inventorsTop 25%

Overall (2003): #195,395 of 273,478Top 75%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6601456	Fretting fixture for high-cycle fatigue test machines	David L. Davidson, Thomas E. Owen	2003-08-05