JJ

John L. Chapman, Jr.

AT AT&T: 2 patents #7,280 of 18,772Top 40%
📍 Catonsville, MD: #103 of 266 inventorsTop 40%
🗺 Maryland: #13,387 of 35,612 inventorsTop 40%
Overall (All Time): #2,347,779 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4583954 Methods of assembling electrical protective devices Thomas A. La Valle, Peter S. Nelson 1986-04-22
4458288 Electrical protective devices Thomas A. La Valle, Peter S. Nelson 1984-07-03