IS

I. Stuart Smith

UL University Of Lowell: 2 patents #1 of 5Top 20%
📍 Chelmsford, MA: #1 of 41 inventorsTop 3%
🗺 Massachusetts: #202 of 2,831 inventorsTop 8%
Overall (1989): #25,305 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4816727 Vibratory interference sensor G. Dudley Shepard, Stephen Christensen, Xiaochuan Lu 1989-03-28
4804896 Vibratory interference sensor G. Dudley Shepard, Stephen Christensen, Richard Lu 1989-02-14