JI

James R. Hahn, III

AT American Telephone And Telegraph: 1 patents #132 of 699Top 20%
AL American Telephone And Telegraph Company, At&T Bell Laboratories: 1 patents #330 of 1,086Top 35%
📍 Gahanna, OH: #149 of 257 inventorsTop 60%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,897,093 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4905274 Key telephone management system Bret A. Cooper, William H. Havanas, Mark A. Martinka 1990-02-27