William F. Perenchio

KF Kalman Floor: 1 patents #4 of 6Top 70%

📍 Northfield, IL: #59 of 110 inventorsTop 55%

🗺 Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #3,735,243 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5487307	Method and apparatus for testing concrete expansion	Robert Landgren	1996-01-30