WL

W. Frank Landon

Caterpillar: 1 patents #4,437 of 8,398Top 55%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,571,176 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6182634 Low RPM switching tachometer Sarah D. Caldwell, Robert Quincy Elliott, John E. Francis, David M. Smith, Stephen M. Sturhahn 2001-02-06