JZ

Jack E. Zipf

AT AT&T: 1 patents #10,626 of 18,772Top 60%
📍 Columbus, OH: #1,440 of 3,880 inventorsTop 40%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,305,509 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5263865 Personal learning system — 1993-11-23
4909053 High security door locking device Walter O. Zipf, III, Kenneth W. Wheatley, Dewayne H. Meyer 1990-03-20